The kinetic S-model is used to study the steady rarefied gas flow through a long pipe of variable cross section joining two tanks with arbitrary differences in pressure and temperature. The kinetic equation is solved numerically by applying a second-order accurate conservative method on an unstructured mesh. The basic quantity to be computed is the gas flow rate through the pipe. The possibility of finding a solution based on the assumption of the plane cross sectional flow is also explored. The resulting solutions are compared with previously known results.
|Number of pages||10|
|Journal||Computational Mathematics and Mathematical Physics|
|Publication status||Published - Aug 2013|
- kinetic S-model
- Poiseuille flow
- rarefied gas
- TVD scheme