ANALYSIS OF THE FLOW OF RAREFIED GAS THROUGH A LAYER OF A POROUS BODY ON THE BASIS OF DIRECT NUMERICAL SOLUTION OF THE KINETIC BOLTZMANN EQUATION
A. P. Kryukov, V. Yu. Levashov, and I. N. Shishkova UDC 533.7:536.423 The problem of the flow of rarefied gas through a layer of a porous body, which is replaced by a homogeneous system of immobile spherical particles, is solved on the basis of the method of direct numerical solution of the kinetic Boltzmann equation. The effect of the spherical particles on the gas molecules is described as a kind of "boundary condition" distributed in space. Dependences of the density, temperature, and velocity on the coordinate in physical space are obtained; cross sections of the distribution function of the gas molecules by velocities are presented. Moscow Power Institute (Technical University), Moscow, Russia; email: apk@mcsa.ac.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 74, No. 2, pp. 25-28, March-April, 2001. Original article submitted July 25, 2000. JEPTER7492020012 JEPTER749202