-
21 measurements of flow properties
English-Russian mining dictionary > measurements of flow properties
-
22 properties
1. свойства, качества, характеристики (see also property)2. способности, показателиballistic properties — 1) баллистические характеристики 2) сопротивление ( материала) баллистическому удару
ballistic impact properties — сопротивление ( материала) баллистическому удару
bending fatigue properties — изгибная усталостная прочность
chemical properties — химические свойства
composite properties — свойства композиции, характеристики композиционного материала
creep-rupture properties — характеристики длительной прочности
cryogenic properties — свойства при криогенных температурах
deformation properties — деформационные свойства
directional strength properties — направленные прочностные свойства
dispersoid properties — свойства дисперсоида
elastic properties — упругие [эластичные] свойства
elevated-temperature properties — свойства ( материала) при повышенных температурах
fatigue properties — характеристики усталости материала, усталость
ferroelectric properties — сегнетоэлектрические свойства
fiber properties — свойства волокна [нити]
filament properties — свойства нити [волокна]
flow properties — реологические свойства, текучесть
fracture properties — 1) характеристики излома [разрушения] 2) сопротивление излому [разрушению]
high-temperature properties — свойства при высоких температурах
high-temperature compatibility properties — совместимость при высоких температурах
high-temperature mechanical properties — механические характеристики при высоких температурах
high-temperature stress-rupture properties — длительная прочность при высоких температурах
hot-aging properties — стойкость против теплового старения
hydrophobic properties — гидрофобность
laminate properties — характеристики слоистого материала
material properties — свойства [характеристики] материала
matrix properties — свойства матрицы [связующего]
mechanical properties — механические свойства
micromechanical properties — микромеханические свойства
photoconductive properties — фотопроводимость, свойства фотопроводимости
plastic properties — 1) пластичные свойства 2) свойства [характеристики] пластиков
plasto-elastic properties — упругопластические свойства
processing properties — технологические свойства
propellant properties — характеристики [свойства] ракетного топлива
resin properties — свойства смолы
rheological properties — реологические свойства, текучесть
shielding properties — защитные [экранирующие] свойства
strength properties — прочностные свойства [характеристики]
strength-weight properties — характеристики удельной прочности
stress-rupture properties — характеристики длительной прочности, длительная прочность
tailor-made properties — ( заранее) заданные свойства
technological properties — технологические свойства
thermal properties — тепловые [термические] свойства
thermochemical properties — термохимические свойства
vibration-damping properties — демпфирующие [вибропоглощающие] свойства
viscoelastic properties — вязкоупругие [вязкоэластические] свойства
English-Russian dictionary of aviation and space materials > properties
-
23 flow characteristics
см. flow properties -
24 quasi displacement flow
квазивытесняющий поток (воздуха)
-
[Интент]
Рис. TROX TECHNIKПараллельные тексты EN-RU
Quasi displacement flow
The cooled supply air initially discharges vertically or slightly inclined into the room through a grille at a mean velocity (1 to 1.5 m/s). Since cold air is heavier than hot air, the air flow direction reverses and the supply air flows locally towards the floor. There it forms a ”pool of supply air” with properties as previously described.
[TROX TECHNIK]Квазивытесняющий поток
Охлажденный приточный воздух подается вертикально или под небольшим углом со скоростью от 1 до 1,5 м/сек. Поскольку холодный воздух тяжелее теплого, то поток меняет направление и опускается к полу. У пола формируется слой воздуха, имеющего низкую скорость и высокое качество. Далее все происходит так же, как и с вытесняющим потоком.
[Перевод Интент]
Тематики
EN
Англо-русский словарь нормативно-технической терминологии > quasi displacement flow
-
25 local properties of cake in cross-flow microfiltration of submicron particles
Универсальный англо-русский словарь > local properties of cake in cross-flow microfiltration of submicron particles
-
26 property
1. свойство, особенность, качество, характеристика; параметр2. общественность, владение; имущество; хозяйство
* * *
1. характеристика, свойство, особенность2. собственность, владение
* * *
1) свойство; качество; признак; характеристика2) имущество•- antiknock properties
- base exchange properties
- cement slurry properties
- cement slurry fluid properties
- chemical properties
- collecting properties
- colloidal properties
- creep-rupture properties
- crude oil properties
- deplastering properties
- directional strength properties
- downhole properties
- drilling mud properties
- drilling mud suspension property
- elastic properties of formation
- failure properties
- filtering properties
- filtration properties
- filtration drilling mud properties
- flow properties
- fluid properties
- fluid dynamic properties
- fluid loss properties
- gas-dynamic properties
- gelling property
- hydrodynamic properties
- insulating properties
- isolating properties
- lithological properties
- lubricating property
- molecular surface properties
- mud-making properties
- objectionable drilling mud properties
- oil properties
- oil-and-gas properties
- oil-driving properties
- oil-refining properties
- oil-sweeping properties
- operational properties
- petrophysical rock properties
- phase boundary properties
- physical-and-colloidal properties
- physical-oil properties
- plastering properties
- plugging properties
- proknock properties
- real gas properties
- refractor properties
- reservoir properties
- reservoir petrophysical properties
- rheological properties
- sedimentation properties
- service properties
- strength properties
- stress-strain properties
- thixotropic properties
- utilization properties
- velocity properties
- wall-building properties
- wall-plastering properties
- water-loss property* * *• параметр• признак• свойствоАнгло-русский словарь нефтегазовой промышленности > property
-
27 property
характеристика; свойство, качество -
28 property
-
29 измерения реологических свойств
Большой англо-русский и русско-английский словарь > измерения реологических свойств
-
30 measurement
1. измерение, замер; вычисление2. система мер3. pl. размеры
* * *
1. измерение2. размер
* * *
измерение, замер; вычисление
* * *
измерение, вычисление
* * *
1) измерение2) размер•- measurement of formation pressure
- measurement of mud resistivity
- measurement of production output
- measurement of production rate
- measurement of shear stress at zero shear rate
- measurement of stratum thickness
- measurement of viscosity
- measurement of wellhead pressure
- acoustic measurements
- acoustic position measurement
- acoustic well-logging measurement
- anisotropy measurement
- arc measurement
- bed permeability measurement
- borehole measurements
- borehole electrical measurements
- borehole gravity measurements
- borehole logging measurement
- borehole magnetic measurements
- borehole temperature measurements
- borehole-to-borehole measurements
- bottomhole flowing pressure measurement
- caliper measurement
- casing measurement
- compensated density measurement
- crossborehole measurements
- crosshole measurements
- crosshole acoustic measurements
- crosshole transmission measurements
- crosswell measurements
- depth measurement
- diagnostic measurement
- differential pressure measurement
- directional permeability measurement
- distant seismic measurements
- downhole measurements
- downhole pressure measurement
- drill pipe measurement
- drillhole measurements
- electrical measurements
- failure measurement
- field measurements
- final shut-in bottomhole pressure measurement
- flowmeter measurement
- electrical survey measurement
- electrical well-logging measurement
- first-peak measurement
- gas production rate measurement
- gas yield measurement
- gel strength measurement
- geophone measurement
- geophysical measurements
- gravity measurements
- high-pressure viscosity measurement
- high-temperature viscosity measurement
- hole-to-hole measurements
- initial flowing bottomhole pressure measurement
- initial shut-in bottomhole pressure measurement
- in-situ measurements
- interborehole measurements
- kelly bushing measurement
- logging tool measurement
- magnetic measurements
- maintainability measurement
- maintenance measurement
- multiple-hole measurements
- noise measurements
- normal-moveout measurement
- oil measurement
- oil production rate measurement
- overburden rock pressure measurement
- overflow measurement
- packer-flowmeter measurement
- pressure measurement
- pressure build-up measurement
- pressure drop measurement
- reflection measurements
- refraction measurements
- reliability measurement
- seismic measurements
- seismic noise measurement
- seismic velocity measurements
- shallow refraction measurements
- shallow resistivity measurement
- short-period measurements
- single-hole measurements
- spot measurement
- sonic log measurements
- stacking velocity measurements
- steel line measurement
- stretch measurement
- time-distance measurements
- tool measurement
- torque measurement
- ultrasonic pulse transit time measurement
- uphole-time measurements
- velocity measurement
- well measurements
- well-logging measurements
- well-production rate measurement
- wide-angle reflection measurements* * *Англо-русский словарь нефтегазовой промышленности > measurement
-
31 property
1) свойство; характеристика; качество; способность; характерная [отличительная\] особенность•-
acoustic properties
-
adhesion property
-
adsorption property
-
aerodynamic properties
-
antiknock properties
-
antioxygenic properties
-
antireflection properties
-
antisquawk property
-
antiwear properties
-
antiwelding properties
-
associative property
-
blocking property
-
bonding property
-
boundary properties
-
bulk properties
-
caking property
-
carbon forming property
-
casting properties
-
cementing properties
-
coking property
-
cold resisting property
-
colligative property
-
commutative property
-
compounding properties
-
constitutive properties
-
cornering property
-
creasing property
-
creep property
-
cryoprotective properties
-
cycle-and-add property
-
decay property
-
deplastering properties
-
directional property
-
distributive property
-
drainage property
-
ductility property
-
elastic properties
-
electrochemical properties
-
electrode properties
-
end-use properties
-
extensive property
-
extremal property
-
extreme pressure properties
-
extrinsic properties
-
fatigue properties
-
flexural properties
-
flow property
-
fluid loss properties
-
friction and wear properties
-
gelling property
-
general properties
-
geophysical properties
-
geotechnical properties
-
greasy property
-
group property
-
gum-forming property
-
heat-transfer properties
-
hiding property
-
hydrophobic property
-
hydrophylic property
-
hygroscopic property
-
image transfer property
-
intensive property
-
interfacial properties
-
intrinsic properties
-
leveling property
-
lightfastness property
-
linear property
-
low-temperature mechanical properties
-
lubricating property
-
metric property
-
minimal property
-
minimax property
-
minimum property
-
moisture barrier property
-
mud-making properties
-
oil-resisting property
-
oil-retaining property
-
oil-sweeping properties
-
optical properties
-
optoelectronic properties
-
oxygen barrier property
-
partition property
-
paste forming properties
-
photoelastic properties
-
photovoltaic properties
-
plastering properties
-
plastic properties
-
plasto-elastic properties
-
plugging properties
-
post-yield properties
-
proknock properties
-
qualitative property
-
quantitative property
-
refractory property
-
reservoir petrophysical properties
-
resolving-power properties
-
riding properties
-
rimming property
-
sanding property
-
sealing property
-
short transverse properties
-
shrinking property
-
sorption properties
-
sound-proofing properties
-
storage property
-
strength property
-
stress-optic properties
-
stretching properties
-
superconducting properties
-
thermal fatigue properties
-
thermal properties
-
thermodynamic properties
-
thermophysical properties
-
toxicological properties
-
uniqueness property
-
variable properties
-
vatting property
-
viscoelastic properties
-
wall-building properties
-
wear property
-
wear resisting property
-
wetting property -
32 control
1. управление || управлять2. контроль || контролировать3. pl. органы управления; рычаги управления4. борьба (напр., с проявлениями в скважине), контроль; наблюдениеcontrol of formation pressure — борьба с проявлениями пластового давления при бурении, сдерживание пластового давления
control of high pressure wells — контроль скважин высокого давления, сдерживание давления в высоконапорных скважинах
* * *
1. контроль; проверка2. управление; регулирование3. орган управления; управляющее устройство
* * *
управление; контроль; механизм подачи; сеть опорных точек (геодезическая основа, привязка); наблюдение
* * *
регулирование, настройка; контроль; управление
* * *
1) контроль; проверка2) управление; регулирование3) орган управления (/i]); управляющее устройство4) борьба (напр. с проявлениями в скважине)•- control of formation pressurecontrol over encountered subsurface pressures — контроль давления во вскрытых пластах;
- control of gas oil ratio
- control of high pressure well
- automatic drilling control
- automatic process control
- automatic winch control
- blowout control
- blowout preventer control
- casing string cementing quality control
- cementing quality control
- centralized control
- choke control
- circulation-loss control
- clay control
- complete control
- computerized production control
- corrosion control
- counterweight swing control
- damage control
- depth control
- direct supporting feed control
- drill control
- driller's control
- drilling control
- drilling mud properties control
- drilling mud rheological properties control
- drilling process control
- elastic control
- facies control of oil occurrence
- fail-safe control
- failure control
- failure recurrence control
- feed control
- feed control of direct supporting type
- field development control
- fire control
- flow control
- flow-ratio control
- formation pressure control
- gas-hydration control
- gas-oil level control
- gas-production control
- ground control
- hole deviation control
- hydraulic control
- hydraulic control of disk clutch
- hydraulic drilling control
- inspection control
- interface level control
- level control
- lever control
- liquid level control
- loss control
- lost circulation control
- maintainability control
- maintenance control
- manufacturing reliability control
- mud control
- nuclear powered blowout presenter controls
- oil-losses control
- oil-production control
- oil-spill control
- oil-stock loss control
- paraffin control
- pipeline control
- pipeline dispatch control
- pollution control
- pressure control
- preventive control
- producing well control
- production control
- reliability control
- reliability data control
- refinery control
- remote control
- reverse control
- safety control
- sand control
- sand pressure control
- scale control
- serviceability control
- solids control
- stepless speed control
- teletype control
- temperature control
- throttle control
- tie-bottom control
- tong-torque control
- total drilling control
- total mechanical solids control
- traffic control
- valve control
- water control
- weight control
- weight-on-bit control
- well control
- well boring control
- well production control
- well velocity control
- withdrawal rate control* * * -
33 curve
1) кривая2) изгиб; закругление; кривизна || изгибать(ся); закруглять(ся)4) лекало (чертёжное, швейное)5) ж.-д. кривая (пути)6) дорож. разбивать кривую•to negotiate a curve — вписываться в кривую (пути);to round curves — проходить кривые участки пути;to run through a curve — проходить кривую (пути);curve of (centers of) flotation — катящаяся кривая, кривая центров тяжести площади ватерлинии ( при наклонениях судна)curve of constant slope — линия откосаcurves of form (of hydrostatic properties) — мор. кривые элементов теоретического чертежаcurve of metacenters — мор. кривая метацентров, метацентрическая обёрткаcurve of Persei — кривая Персея, спирическая кривая-
A curve
-
Abbot's curve
-
aberration curve
-
adiabatic curve
-
altitude curve
-
amplitude-response curve
-
analytic curve
-
angle-time curve
-
anharmonic curve
-
anhysteretic magnetization curve
-
annealing curve
-
antidromic curve
-
antipedal curve
-
aperture response curve
-
apolar curve
-
backwater surface curve
-
backwater curve
-
ballistic curve
-
bath-tub curve
-
bearing area curve
-
bearing stress curve
-
bell-shaped curve
-
B-H curve
-
binaural curve
-
biquartic curve
-
bitangential curve
-
bitangent curve
-
boiling curve
-
boiling-point curve
-
borderline knock curve
-
bound curves
-
brake performance curve
-
broken-back curve
-
buoyancy curve
-
burning curve
-
calibration curve
-
caliper curve
-
capacity curve
-
catenary curve
-
characteristic current curve
-
characteristic curve
-
characteristic time curve
-
charging curve
-
circular curve
-
climb curve
-
closed curve
-
color response curve
-
commutation curve
-
compound curve
-
compression curve
-
condensation curve
-
confocal curves
-
continuous curve
-
contour curve
-
contrast response curve
-
conveyor curve
-
coordinate curve
-
correction curve
-
cosecant curve
-
cosine curve
-
cotangent curve
-
cross curves of stability
-
cubic curve
-
cumulative property curves
-
current-time curve
-
current-voltage curve
-
damper curve
-
decay curve
-
decline curve
-
decrement curve
-
de-emphasis curve
-
deflection curve
-
deformation curve
-
demagnetization curve
-
depletion curve
-
derating curve
-
dew-point curve
-
dextrorse curve
-
directing curve
-
discharge curve
-
discharge frequency curve
-
discharge voltage-time curve
-
discharging curve
-
displacement curve
-
distillate yield curve
-
distribution curve
-
D-log E curve
-
dose-survival curve
-
drawdown curve
-
drooping volt-ampere curve
-
dry-bulb temperature curve
-
duration curve
-
dynamic stability curve
-
easement curve
-
efficiency curve
-
elastic curve
-
elevation-area curve
-
elution curve
-
empirical curve
-
end point yield curve
-
enthalpy curve
-
entropy curve
-
envelope curve
-
epitrochoidal curve
-
equalization curve
-
equiprobability curve
-
error curve
-
exponential curve
-
faired curve
-
family curve
-
fatigue curve
-
firing curve
-
first-arrival curve
-
fitted curve
-
flash point yield curve
-
flash yield curve
-
flat curve
-
floodable length curve
-
flow curve
-
flow-through curve
-
frequency curve
-
frequency-response curve
-
full-load curve
-
full-load performance curve
-
full-load saturation curve
-
funicular curve
-
gain curve
-
Gaussian curve
-
generating curve
-
generation curve
-
grading curve
-
granulometric curve
-
gravity mid per cent curve
-
growth curve
-
guide curve
-
H and D curve
-
hardening curve
-
harmonic curve
-
head-flow curve
-
heating load curve
-
helical curve
-
horizontal curve
-
Hurter and Driffield curve
-
hydrostatic curves
-
hysteresis curve
-
incremental fuel consumption curve
-
induction-permeability curve
-
infiltration curve
-
integral curve
-
interpolation curve
-
ionization curve
-
irregular curve
-
isentropic curve
-
isobaric curve
-
isobatic curve
-
isochronous curve
-
isoclinic curve
-
isothermal curve
-
isotime curve
-
isotropic curve
-
lag curve
-
launching curves
-
lead curve
-
learning curve
-
level curve
-
limit curve
-
load curve
-
load-deflection curve
-
load-duration curve
-
load-extension curve
-
load-opening displacement curve
-
load-strain curve
-
load-time curve
-
logarithmic curve
-
luminosity curve
-
magnetization curve
-
Mayor curve
-
mean temperature-time curve
-
no-load curve
-
normal curve
-
normal traveltime curve
-
normalized magnetization curve
-
O-curve
-
overload curve
-
parameter curve
-
particle-size distribution curve
-
part-load curve
-
pay load-range curve
-
pedal curve
-
performance curve
-
permeability curve
-
plane curve
-
polar curve
-
potential curve
-
power-angle curve
-
preemphasis curve
-
pressure curve
-
pressure drawdown curve
-
probability curve
-
propeller performance curves
-
quadric curve
-
quartic curve
-
quintic curve
-
railroad curve
-
railway curve
-
rate-of-failure curve
-
rating curve
-
recession curve
-
reciprocity curve
-
recovery curve
-
rectifiable curve
-
refrigerant flow curve
-
regression curve
-
regulation curve
-
remanence curve
-
remarkable curve
-
resistance curve
-
resistance variation curve
-
resonance curve
-
response curve
-
reverse curve
-
righting arms curve
-
righting arm curve
-
righting moment curve
-
rising-stage curve
-
room temperature curve
-
runoff curve
-
sag vertical curve
-
saturation curve
-
secant curve
-
self-polar curve
-
sensitivity curve
-
sensitometric curve
-
sextic curve
-
sharp curve
-
sheer curve
-
short radius curve
-
short-circuit curve
-
simple curve
-
sine curve
-
sinistrorse curve
-
sizing curve
-
sliding curve
-
slip-current curve
-
smooth curve
-
space curve
-
spectral-distribution curve
-
spectral-response curve
-
speed performance curve
-
speed-load curve
-
spiral curve
-
spur conveyor curve
-
stability curve
-
standardization curve
-
statical stability curve
-
stationary curve
-
steam-pressure curve
-
steep curve
-
step curve
-
stratification curve
-
stress-strain curve
-
stripping curve
-
subsequent fracture curve
-
superheat curve
-
swing curve
-
tangent curve
-
tangential curve
-
temperature curve
-
temperature-depth curve
-
temperature-viscosity curve
-
test curve
-
thrust curve
-
tide curve
-
time-gamma curve
-
time-light curve
-
time-temperature-transformation curve
-
tons per inch curve
-
torque curve
-
torque-angle curve
-
torque-speed curve
-
torque-vs-displacement curve
-
total heat curve
-
track curve
-
transfer curve
-
transient curve
-
transition boiling curve
-
transition curve
-
translation curve
-
transversal curve
-
trochoidal curve
-
TTT curve
-
turnout curve
-
universal curve
-
vapor-pressure curve
-
vapor curve
-
vertical curve
-
vertical travel-time curve
-
viscosity mid per cent curve
-
volumetric efficiency curve
-
washability curve
-
wear-time curve
-
wet-bulb temperature curve
-
Wohler's curve
-
work-hardening curve
-
yield curve -
34 continuous current-carrying capacity
длительная пропускная способность по току
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > continuous current-carrying capacity
-
35 ampacity (US)
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
Англо-русский словарь нормативно-технической терминологии > ampacity (US)
-
36 continuous current
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
непрерывный ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999]Тематики
- электротехника, основные понятия
EN
Англо-русский словарь нормативно-технической терминологии > continuous current
-
37 current-carrying capacity
(длительный) допустимый ток
Максимальное значение электрического тока, который может протекать длительно по проводнику, устройству или аппарату при определенных условиях без превышения определенного значения их температуры в установившемся режиме
[ ГОСТ Р МЭК 60050-826-2009]
Этот ток обозначают IZ
[ ГОСТ Р 50571. 1-2009 ( МЭК 60364-1: 2005)]EN
(continuous) current-carrying capacity
ampacity (US)
maximum value of electric current which can be carried continuously by a conductor, a device or an apparatus, under specified conditions without its steady-state temperature exceeding a specified value
[IEV number 826-11-13]
ampacity
The current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
[National Electrical Cod]FR
courant (permanent) admissible, m
valeur maximale du courant électrique qui peut parcourir en permanence, un conducteur, un dispositif ou un appareil, sans que sa température de régime permanent, dans des conditions données, soit supérieure à la valeur spécifiée
[IEV number 826-11-13]Ampacity, the term is defined as the maximum amount of current a cable can carry before sustaining immediate or progressive deterioration. Also described as current rating or current-carrying capacity, is the RMS electric current which a device can continuously carry while remaining within its temperature rating. The ampacity of a cable depends on:
- its insulation temperature rating;
- conductor electrical properties for current;
- frequency, in the case of alternating currents;
- ability to dissipate heat, which depends on cable geometry and its surroundings;
- ambient temperature.
Electric wires have some resistance, and electric current flowing through them causes voltage drop and power dissipation, which heats the cable. Copper or aluminum can conduct a large amount of current before melting, but long before the conductors melt, their insulation would be damaged by the heat.
The ampacity for a power cable is thus based on physical and electrical properties of the material & construction of the conductor and of its insulation, ambient temperature, and environmental conditions adjacent to the cable. Having a large overall surface area may dissipate heat well if the environment can absorb the heat.
In a long run of cable, different conditions govern, and installation regulations normally specify that the most severe condition along the run governs the cable's rating. Cables run in wet or oily locations may carry a lower temperature rating than in a dry installation. Derating is necessary for multiple circuits in close proximity. When multiple cables are near, each contributes heat to the others and diminishes the amount of cooling air that can flow past the individual cables. The overall ampacity of the insulated conductors in a bundle of more than 3 must be derated, whether in a raceway or cable. Usually the de-rating factor is tabulated in a nation's wiring regulations.
Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75 and 90 degrees Celsius, often with an ambient air temperature of 30°C. In the U.S., 105°C is allowed with ambient of 40°C, for larger power cables, especially those operating at more than 2 kV. Likewise, specific insulations are rated 150, 200 or 250°C.
The allowed current in cables generally needs to be decreased (derated) when the cable is covered with fireproofing material.
For example, the United States National Electric Code, Table 310-16, specifies that up to three 8 AWG copper wires having a common insulating material (THWN) in a raceway, cable, or direct burial has an ampacity of 50 A when the ambient air is 30°C, the conductor surface temperature allowed to be 75°C. A single insulated conductor in air has 70 A rating.
Ampacity rating is normally for continuous current, and short periods of overcurrent occur without harm in most cabling systems. The acceptable magnitude and duration of overcurrent is a more complex topic than ampacity.
When designing an electrical system, one will normally need to know the current rating for the following:- Wires
- Printed Circuit Board traces, where included
- Fuses
- Circuit breakers
- All or nearly all components used
Some devices are limited by power rating, and when this power rating occurs below their current limit, it is not necessary to know the current limit to design a system. A common example of this is lightbulb holders.
[http://en.wikipedia.org/wiki/Ampacity]
Тематики
- электротехника, основные понятия
Синонимы
EN
DE
- Dauerstrombelastbarkeit, f
- Strombelastbarkeit, f
FR
- courant admissible, m
- courant permanent admissible, m
предельно допустимый ток
—
[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
EN
прочность печатной платы к токовой нагрузке
Свойство печатной платы сохранять электрические и механические характеристики после воздействия максимально допустимой токовой нагрузки на печатный проводник или металлизированное отверстие печатной платы.
[ ГОСТ Р 53386-2009]Тематики
EN
Англо-русский словарь нормативно-технической терминологии > current-carrying capacity
-
38 FP
1) Общая лексика: рамочная программа (framework programme), флуоресцентная поляризация липидов сыворотки крови2) Компьютерная техника: File Pointer, Formatting Properties3) Геология: Fracture Plane4) Медицина: Family Practice5) Американизм: Freedom Of Press6) Ботаника: Flower Points7) Спорт: Fair Play, Former Players8) Военный термин: Field Party, Field Post, Fighting Points, Final Prototype, Fire Position, Fire Pulse, Fixed Pitch, Functional Proponent, field punishment, fighter propulsion, firing phase, firing platoon, fixed point, flat point, flight pay, flight publications, foolproof, foot patrol, forfeiture of pay, freight and passenger, financial planning9) Техника: fattening period, feedback, feedback potentiometer, film pack, fire plug, fission product, flameproof, flexibility point, flight programmer, flow line pressure, flow point, foot-pound, foot-pound-force, foreground processing, front projection, full period, full pressure, fusible plug, fusion point, positive10) Сельское хозяйство: Farm Points, fowl pox11) Шутливое выражение: Furious Poet12) Математика: Fundamental Parameter13) Религия: Florilegium Patristicum14) Метеорология: Front Polar15) Железнодорожный термин: Fordyce and Princeton Railroad Company16) Юридический термин: False Positive17) Автомобильный термин: fuel pump, fuel pump relay (Ford)18) Грубое выражение: Fucking Pussies19) Металлургия: Fire Proofing20) Оптика: Fabry-Perot21) Политика: French Polynesia22) Сокращение: Faceplate, Fishery Protection, Floating Point, Force Package, Force Projection, Frangible Projectile, Presorted First-class rate category abbreviation on letter mail key line, feedback positive, field protective, fireplace, foreign policy, forepeak, former pupil, forward perpendicular, fungus proof, Agence France Press (agency, France)23) Физиология: Food Poisoning24) Электроника: Full Power25) Вычислительная техника: flat package, format prefix, function processor, плавающая точка, функциональный процессор26) Нефть: final pressure, flowing pressure, flowline pressure, formation pressure, конечное давление (final pressure), точка замерзания (freezing point)27) Иммунология: Fat Potential, ferriprotoporphyrin29) Банковское дело: полностью оплаченный (fully paid), фиксированная цена (fixed price)30) Транспорт: Fast Pass31) Пищевая промышленность: Food Poison32) Фирменный знак: Founding Partner, Frankoma Pottery33) СМИ: Film And Print34) Бурение: гидродинамическое давление (flowing pressure), flowing pressure (usually refers to flowing tubing pressure)35) Глоссарий компании Сахалин Энерджи: Fire Protection Subcommittee, freeze protected, freeze protection, full port, полнопроходной, противопожарная защита (fire protection)36) Образование: Foster Parents37) Инвестиции: fixed price, fully paid38) Сетевые технологии: file protection, защита файла, поле префикса39) Полимеры: feed pump, flashless propellant40) Программирование: Font Position, единица функционального размера (см. function point)41) Сахалин Р: fire protection42) Физическая химия: Focusing Potential (в масс-спектроскопии)43) Безопасность: ответственное лицо (Focal Point)44) Расширение файла: Data (FileMaker Pro)45) Нефть и газ: fore peak, температура вспышки, форпик46) Электротехника: field-protective (relay)47) Имена и фамилии: Fanny Price48) Фармация: Польская фармакопея49) НАСДАК: Fibre Product50) Должность: Fishing Partner, Forensic Psychologist51) Чат: Fun Person, Funny Party52) Аэропорты: Forensic Pathologist53) НАСА: Frozen Planet -
39 Fp
1) Общая лексика: рамочная программа (framework programme), флуоресцентная поляризация липидов сыворотки крови2) Компьютерная техника: File Pointer, Formatting Properties3) Геология: Fracture Plane4) Медицина: Family Practice5) Американизм: Freedom Of Press6) Ботаника: Flower Points7) Спорт: Fair Play, Former Players8) Военный термин: Field Party, Field Post, Fighting Points, Final Prototype, Fire Position, Fire Pulse, Fixed Pitch, Functional Proponent, field punishment, fighter propulsion, firing phase, firing platoon, fixed point, flat point, flight pay, flight publications, foolproof, foot patrol, forfeiture of pay, freight and passenger, financial planning9) Техника: fattening period, feedback, feedback potentiometer, film pack, fire plug, fission product, flameproof, flexibility point, flight programmer, flow line pressure, flow point, foot-pound, foot-pound-force, foreground processing, front projection, full period, full pressure, fusible plug, fusion point, positive10) Сельское хозяйство: Farm Points, fowl pox11) Шутливое выражение: Furious Poet12) Математика: Fundamental Parameter13) Религия: Florilegium Patristicum14) Метеорология: Front Polar15) Железнодорожный термин: Fordyce and Princeton Railroad Company16) Юридический термин: False Positive17) Автомобильный термин: fuel pump, fuel pump relay (Ford)18) Грубое выражение: Fucking Pussies19) Металлургия: Fire Proofing20) Оптика: Fabry-Perot21) Политика: French Polynesia22) Сокращение: Faceplate, Fishery Protection, Floating Point, Force Package, Force Projection, Frangible Projectile, Presorted First-class rate category abbreviation on letter mail key line, feedback positive, field protective, fireplace, foreign policy, forepeak, former pupil, forward perpendicular, fungus proof, Agence France Press (agency, France)23) Физиология: Food Poisoning24) Электроника: Full Power25) Вычислительная техника: flat package, format prefix, function processor, плавающая точка, функциональный процессор26) Нефть: final pressure, flowing pressure, flowline pressure, formation pressure, конечное давление (final pressure), точка замерзания (freezing point)27) Иммунология: Fat Potential, ferriprotoporphyrin29) Банковское дело: полностью оплаченный (fully paid), фиксированная цена (fixed price)30) Транспорт: Fast Pass31) Пищевая промышленность: Food Poison32) Фирменный знак: Founding Partner, Frankoma Pottery33) СМИ: Film And Print34) Бурение: гидродинамическое давление (flowing pressure), flowing pressure (usually refers to flowing tubing pressure)35) Глоссарий компании Сахалин Энерджи: Fire Protection Subcommittee, freeze protected, freeze protection, full port, полнопроходной, противопожарная защита (fire protection)36) Образование: Foster Parents37) Инвестиции: fixed price, fully paid38) Сетевые технологии: file protection, защита файла, поле префикса39) Полимеры: feed pump, flashless propellant40) Программирование: Font Position, единица функционального размера (см. function point)41) Сахалин Р: fire protection42) Физическая химия: Focusing Potential (в масс-спектроскопии)43) Безопасность: ответственное лицо (Focal Point)44) Расширение файла: Data (FileMaker Pro)45) Нефть и газ: fore peak, температура вспышки, форпик46) Электротехника: field-protective (relay)47) Имена и фамилии: Fanny Price48) Фармация: Польская фармакопея49) НАСДАК: Fibre Product50) Должность: Fishing Partner, Forensic Psychologist51) Чат: Fun Person, Funny Party52) Аэропорты: Forensic Pathologist53) НАСА: Frozen Planet -
40 fp
1) Общая лексика: рамочная программа (framework programme), флуоресцентная поляризация липидов сыворотки крови2) Компьютерная техника: File Pointer, Formatting Properties3) Геология: Fracture Plane4) Медицина: Family Practice5) Американизм: Freedom Of Press6) Ботаника: Flower Points7) Спорт: Fair Play, Former Players8) Военный термин: Field Party, Field Post, Fighting Points, Final Prototype, Fire Position, Fire Pulse, Fixed Pitch, Functional Proponent, field punishment, fighter propulsion, firing phase, firing platoon, fixed point, flat point, flight pay, flight publications, foolproof, foot patrol, forfeiture of pay, freight and passenger, financial planning9) Техника: fattening period, feedback, feedback potentiometer, film pack, fire plug, fission product, flameproof, flexibility point, flight programmer, flow line pressure, flow point, foot-pound, foot-pound-force, foreground processing, front projection, full period, full pressure, fusible plug, fusion point, positive10) Сельское хозяйство: Farm Points, fowl pox11) Шутливое выражение: Furious Poet12) Математика: Fundamental Parameter13) Религия: Florilegium Patristicum14) Метеорология: Front Polar15) Железнодорожный термин: Fordyce and Princeton Railroad Company16) Юридический термин: False Positive17) Автомобильный термин: fuel pump, fuel pump relay (Ford)18) Грубое выражение: Fucking Pussies19) Металлургия: Fire Proofing20) Оптика: Fabry-Perot21) Политика: French Polynesia22) Сокращение: Faceplate, Fishery Protection, Floating Point, Force Package, Force Projection, Frangible Projectile, Presorted First-class rate category abbreviation on letter mail key line, feedback positive, field protective, fireplace, foreign policy, forepeak, former pupil, forward perpendicular, fungus proof, Agence France Press (agency, France)23) Физиология: Food Poisoning24) Электроника: Full Power25) Вычислительная техника: flat package, format prefix, function processor, плавающая точка, функциональный процессор26) Нефть: final pressure, flowing pressure, flowline pressure, formation pressure, конечное давление (final pressure), точка замерзания (freezing point)27) Иммунология: Fat Potential, ferriprotoporphyrin29) Банковское дело: полностью оплаченный (fully paid), фиксированная цена (fixed price)30) Транспорт: Fast Pass31) Пищевая промышленность: Food Poison32) Фирменный знак: Founding Partner, Frankoma Pottery33) СМИ: Film And Print34) Бурение: гидродинамическое давление (flowing pressure), flowing pressure (usually refers to flowing tubing pressure)35) Глоссарий компании Сахалин Энерджи: Fire Protection Subcommittee, freeze protected, freeze protection, full port, полнопроходной, противопожарная защита (fire protection)36) Образование: Foster Parents37) Инвестиции: fixed price, fully paid38) Сетевые технологии: file protection, защита файла, поле префикса39) Полимеры: feed pump, flashless propellant40) Программирование: Font Position, единица функционального размера (см. function point)41) Сахалин Р: fire protection42) Физическая химия: Focusing Potential (в масс-спектроскопии)43) Безопасность: ответственное лицо (Focal Point)44) Расширение файла: Data (FileMaker Pro)45) Нефть и газ: fore peak, температура вспышки, форпик46) Электротехника: field-protective (relay)47) Имена и фамилии: Fanny Price48) Фармация: Польская фармакопея49) НАСДАК: Fibre Product50) Должность: Fishing Partner, Forensic Psychologist51) Чат: Fun Person, Funny Party52) Аэропорты: Forensic Pathologist53) НАСА: Frozen Planet
См. также в других словарях:
flow properties — Смотри реологическая характеристика … Энциклопедический словарь по металлургии
Flow-FISH — (fluorescent in situ hybridization) is a cytogenetic technique to quantify the copy number of specific repetitive elements in genomic DNA of whole cell populations via the combination of flow cytometry with cytogenetic fluorescent in situ… … Wikipedia
Flow stress — is defined as the instantaneous value of stress required to continue deforming the material to keep the metal flowing. It is the Yield Strength of the metal as a function of strain, which can be expressed: [1] Yf = Ke^nYf = Flow stress, MPaK =… … Wikipedia
Flow forming — is a metal forming technique in which a disk or tube of metal is formed over a mandrel by a roller using tremendous pressure. The roller shears the metal, forcing it against the mandrel, creating the shape and width of the final product. [… … Wikipedia
Flow cytometry — Analysis of a marine sample of photosynthetic picoplankton by flow cytometry showing three different populations (Prochlorococcus, Synechococcus, and picoeukaryotes) Flow cytometry (abbreviated: FCM) is a technique for counting and examining… … Wikipedia
Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water … Wikipedia
Flow network — In graph theory, a flow network is a directed graph where each edge has a capacity and each edge receives a flow. The amount of flow on an edge cannot exceed the capacity of the edge. Often in Operations Research, a directed graph is called a… … Wikipedia
Flow velocity — In fluid dynamics the flow velocity, or velocity field, of a fluid is a vector field which is used to mathematically describe the motion of a fluid.DefinitionThe flow velocity of a fluid is a vector field: mathbf{u}=mathbf{u}(mathbf{x},t)which… … Wikipedia
Flow visualization — In fluid dynamics it is critically important to see the patterns produced by flowing fluids, in order to understand them. We can appreciate this on several levels: Most fluids (air, water, etc.) are transparent, thus their flow patterns are… … Wikipedia
Properties of concrete — Concrete has relatively high compressive strength, but significantly lower tensile strength, and as such is usually reinforced with materials that are strong in tension (often steel). The elasticity of concrete is relatively constant at low… … Wikipedia
Flow tracer — A flow tracer is any fluid property used to track flow. The concentration of a chemical compound in the fluid can be used as a chemical tracer, and characteristics such as temperature are physical tracers. Tracers may be artificially introduced,… … Wikipedia