roughness factor

См. также в других словарях:

• Roughness — is a measure of the texture of a surface. It is quantified by the vertical deviations of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small the surface is smooth. Roughness is typically… …   Wikipedia

• Darcy friction factor formulae — In fluid dynamics, the Darcy friction factor formulae are equations based on experimental data and theory for the Darcy friction factor. The Darcy friction factor is a dimensionless quantity used in the Darcy–Weisbach equation, for the… …   Wikipedia

• Erosion prediction — Soil erosion prediction models play an important role both in meeting practical needs of soil conservation goals and in advancing the scientific understanding of soil erosion processes. They are used to help land managers choose practices to… …   Wikipedia

• Rugosity — Rugosity, f r, is a measure of small scale variations or amplitude in the height of a surface,:f r = A r/A gwhere A r is the real (true, actual) surface area and A g is the geometric surface area. [GoldBookRef|title=roughness factor (rugosity) of …   Wikipedia

• коэффициент оребрения поверхности — (напр. теплообменника) [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN surface roughness factorSRF …   Справочник технического переводчика

• коэффициент шероховатости поверхности — — [А.С.Гольдберг. Англо русский энергетический словарь. 2006 г.] Тематики энергетика в целом EN surface roughness factorSRF …   Справочник технического переводчика

• Nerve guidance conduit — A nerve guidance conduit (also referred to as an artificial nerve conduit or artificial nerve graft, as opposed to an autograft) is an artificial means of guiding axonal regrowth to facilitate nerve regeneration and is one of several clinical… …   Wikipedia

• Moody chart — The Moody chart or Moody diagram is a graph in non dimensional form that relates the Darcy friction factor, Reynolds number and relative roughness for fully developed flow in a circular pipe. It can be used for working out pressure drop or flow… …   Wikipedia

• Thermal contact conductance — In physics, thermal contact conductance is the study of heat conduction between solid bodies in thermal contact. The thermal contact conductance coefficient, hc, is a property indicating the thermal conductivity, or ability to conduct heat,… …   Wikipedia

• climate — /kluy mit/, n. 1. the composite or generally prevailing weather conditions of a region, as temperature, air pressure, humidity, precipitation, sunshine, cloudiness, and winds, throughout the year, averaged over a series of years. 2. a region or… …   Universalium

• Pipe Networks — generally refers to a common problem in Hydraulic Design. In order to direct water to many individuals in a municipal water supply, many times the water is routed through a Water supply network. A major part of this network may consist of… …   Wikipedia