Kinetic Theory of Thermal Molecular Flow between Coaxial Cylinders and Concentric Spheres

Abstract

According to the revised theory of thermal transpiration in a Knudsen gas, the macroscopic properties in a thermal molecular system has been solved exactly. Based on the exact anisotropic velocity distribution functions the density, pressure, temperature, and isotropy distributions between coaxial cylinders and concentric spheres in a thermal molecular regime are integrated in closed forms.