| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1691834 | Vacuum | 2007 | 10 Pages |
Abstract
The microscopic reversibility of gas-surface collisions is discussed and analyzed using the direct simulation Monte Carlo method for different scattering kernels. A testing procedure for the reversibility analysis is described. Then, the thermal transpiration phenomenon is studied numerically for free molecular flow through short and long capillaries using Maxwell, Cercignani-Lampis, and Epstein scattering kernels. Comparison with experimental data shows that the Cercignani-Lampis and Epstein kernels allow a more accurate description of non-isothermal internal rarefied gas flows than the commonly used Maxwell model.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
O. Sazhin, A. Kulev, S. Borisov, S. Gimelshein,