Heat and Mass Transfer and Physical Gasdynamics

The temperature dependence of the coefficients of thermal and isothermal slip of a diatomic gas with rotational degrees of freedom

A. B. Poddoskin

Moscow State University of Applied Biotechnology

Abstract: A model kinetic equation is suggested for diatomic gases with rotational degrees of freedom of molecules. The free parameters of the model are related to Eucken's partial factors. This model is used to solve the problem on the slip of a diatomic gas along a plane surface. The coefficients of thermal and isothermal slip are obtained in the form of functions dependent on the transport coefficients and the frequency of inelastic collisions of gas molecules and, as a consequence, on the temperature.

UDC: 533.72

Received: 05.02.2004

 English version: High Temperature, 2004, 42:5, 803–808