Kinetic theory based nonlinear treatment for motions of a binary gas mixture involving slightly strong evaporation and condensation processes ? A system of macroscopic equations, the boundary conditions and the Knudsen-layer corrections

1992 ◽  
Vol 43 (5) ◽  
pp. 875-910 ◽  
Author(s):  
Yoshimoto Onishi
Keyword(s):  
Kinetic Theory ◽  
Boundary Conditions ◽  
Knudsen Layer ◽  
Gas Mixture ◽  
Evaporation And Condensation ◽  
Binary Gas Mixture ◽  
Strong Evaporation ◽  
Macroscopic Equations

scholarly journals The concentration-jump coefficient in a rarefied binary gas mixture

1983 ◽  
Vol 137 ◽  
pp. 221-231 ◽  
Author(s):  
C. Shen
Keyword(s):  
Experimental Data ◽  
Numerical Calculation ◽  
Rarefied Gas ◽  
Knudsen Layer ◽  
Inert Gas ◽  
Gas Mixture ◽  
Concentration Jump ◽  
Boltzmann Equations ◽  
Evaporation Coefficient ◽  
Binary Gas Mixture

In this paper we consider the problem of the concentration jump of a vapour in the vicinity of a plane wall, which consists of the condensed phase of the vapour, in a rarefied gas mixture of that vapour (A) and another ‘inert’ gas (B). The general formulation of the problem of determining the concentration-jump coefficient CdA is given. In the Knudsen layer the simplest model of Boley-Yip theory is used to simplify the Boltzmann equations for the binary gas mixture. The numerical calculation of the concentration jump coefficient CdA for various values of evaporation coefficient αA is illustrated for the case of nB [Gt ] nA for which experimental data are available.

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