density pressure

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• Density altitude — Computation Chart. Density altitude is the altitude in the International Standard Atmosphere at which the air density would be equal to the actual air density at the place of observation, or, in other words, the height when measured in terms of… …   Wikipedia

• Pressure head — is a term used in fluid mechanics to represent the internal energy of a fluid due to the pressure exerted on its container. It may also be called static pressure head or simply static head (but not static head pressure). It is mathematically… …   Wikipedia

• Pressure-Correction Methods — refer to a class of methods used in computational fluid dynamics for solving the Navier Stokes equations normally for incompressible flows. Common Properties The equations solved in this approach arise from the implicit time integration of the… …   Wikipedia

• Density — Den si*ty (d[e^]n s[i^]*t[y^]), n. [L. densitas; cf. F. densit[ e].] 1. The quality of being dense, close, or thick; compactness; opposed to {rarity}. [1913 Webster] 2. (Physics) The ratio of mass, or quantity of matter, to bulk or volume, esp.… …   The Collaborative International Dictionary of English

• Density — This article is about mass density. For other uses, see Density (disambiguation). The mass density or density of a material is defined as its mass per unit volume. The symbol most often used for density is ρ (the Greek letter rho). In some cases… …   Wikipedia

• Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

• Density of air — The density of air, ρ (Greek: rho) (air density), is the mass per unit volume of Earth s atmosphere, and is a useful value in aeronautics and other sciences. Air density decreases with increasing altitude, as does air pressure. It also changes… …   Wikipedia

• Pressure — This article is about pressure in the physical sciences. For other uses, see Pressure (disambiguation). Pressure as exerted by particle collisions inside a closed container …   Wikipedia

• Pressure sensor — Digital air pressure sensor Compact digital barometric pressure sensor A pressure sensor measure …   Wikipedia

• Pressure vessel — Vertical pressure vessels installed in a structure A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous and many fatal… …   Wikipedia

• Pressure coefficient — The pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics. The pressure coefficient is used in aerodynamics and hydrodynamics. Every point in a fluid flow field has its own …   Wikipedia