我们致力服务道德sourced咖啡,喜欢环境和给回到社区,我们做生意。 [translate] aAcoustical velocity and Mach number of ideal gas. For an ideal gas, an isentropic path follows the equations 完全气体的音响速度和马赫数。 为一完全气体,一个等熵的道路跟随等式 [translate] ...
In this paper, we consider limit behaviors of Riemann solutions to the isentropic Euler equations for a non-ideal gas (i.e. van der Waals gas) as the pressure vanishes. Firstly, the Riemann problem of the isentropic Euler equations for van der Waals gas is solved. Then it is proved that...
Using κ = cp/ cv(2) where κ=specific heat ratio (1)can be transformed to: (T2/ T1)(κ/(κ-1))= (ρ2/ ρ1)κ= (p2/ p1)(3) (3)express the useful relationship between temperature, density and pressure for an isentropic flow of an ideal gas. ...
Equations of R - and L - simple waves and their properties are derived. Lemma of straight characteristics in a simple wave and theorem of adjoining are proved, which yields important corollary. The problem of crossing characteristics in simple compression waves is discussed. Overturning of a ...
In previous publications, three isentropic exponents, k pv, k Tv, k pT, have been introduced, which when used in place of the classical isentropic exponent k = c p c v in the ideal gas isentropic change equations, the latter can describe very accurately the isentropic change of real gases...
ally accelerated or decelerated until the Mach number was unity, i.e., they are the conditions that would exist if the Mach number was isentropically changed fromMto 1. By denoting the critical conditions by an asterisk, the equations ofSection 2.5allow to obtain the following equations:...
Thermodynamics and Heat Transfer Resources Properties of Air Ideal Gas Compressible Flow of an Ideal Gas Vane Type Air Compressor Review and Design Equations Source American Gas Association and the National Fire Protection Association. Used by permission...
Verify results obtained with values from the appropriate graph in Appendix D with calculations involving ideal gas equations. Is condensation of water vapor a concern? (a) Using the isentropic relations of this chapter, what is the critical pressure (...
The departure functions can be calculated solely from an equation of state, whereas the term ∫CpdT is evaluated in the ideal gas state. For gas compression applications, the most frequently used equations of state are Redlich–Kwong, Soave–Redlich–Kwong, Benedict–Webb–Rubin, Benedict–Webb–...
A number of empirical equations relating important physicochemical properties of liquids and liquid mixtures has been given from time to time. One of the most prominent of them, which is closely related with the isentropic compressibility and density, is the molar compressibility, km, also called Wa...