On the temperature-jump problem in rarefied gas dynamics : the effect of the cercignani-lampis boundary condition
An analytical version of the discrete-ordinates method (the ADO method) is used to establish a solution to the temperature-jump problem in the rarefied gas dynamics field. Kinetic models derived from the linearized Boltzmann equation are used to formulate the problem in the one gas case and for a bi...
| Autores: | ; |
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| Tipo de documento: | Artículo |
| Estado: | Published version |
| Fecha de publicación: | 2006 |
| País: | Brasil |
| Institución: | UFRGS |
| Repositorio: | Repositório Institucional da UFRGS |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:www.lume.ufrgs.br:10183/180020 |
| Acceso en línea: | http://hdl.handle.net/10183/180020 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Dinâmica de gases Rarefação Ordenadas discretas Kernel de cercignani-lampis |
| Sumario: | An analytical version of the discrete-ordinates method (the ADO method) is used to establish a solution to the temperature-jump problem in the rarefied gas dynamics field. Kinetic models derived from the linearized Boltzmann equation are used to formulate the problem in the one gas case and for a binary gas mixture. The gas-surface interaction is described by the Cercignani-Lampis kernel, which is written int therms of two accomodation coefficients. The solution is found to be very accurate and fast. Numerical results are presented not only for the temperature-jump coefficient but also for the density and temperature profiles. In particular, the effect of both accommodation coefficients on the temperature-jump coefficient is analyzed. |
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