ANALYTICAL SOLUTION OF A NONHOMOGENEOUS KINETIC EQUATION WITH A VARIABLE FREQUENCY OF COLLISIONS
A. V. Latyshev, V. N. Popov, and A. A. Yushkanov UDC 533.72 The problem of calculation of a correction to the coefficient of isothermal slip that is due to the wall curvature is solved. For this purpose we constructed the exact solution of a nonhomogeneous model kinetic Boltzmann equation with a collision operator in the form of the BGK model with the frequency of collisions proportional to the modulus of the intrinsic velocity of gas molecules. Comparison with the results obtained earlier is given. Pomor'e State University, Arkhangel'sk, Russia; email: popov.vasily@pomorsu.ru. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 3, pp. 104-106, May-June, 2001. Original article submitted November 26, 2001; revision submitted December 3, 2001. JEPTER7492020022 JEPTER749202