Abstract
Due to its intrinsically kinetic nature, lattice Boltzmann (LB) approach to simulating non-equilibrium gas flows has recently attracted significant research interest. Compared with other kinetic methods, it can offer a significantly smaller computational cost. To capture the nonlinear high-order rarefaction phenomena in gas flows, a geometry-dependent gas local mean free path has been proposed to be implemented in our "high-order" LB model. A series of tests on rarefaction effects and the Knudsen layer interference have been carried out and the simulation results demonstrate our LB model's capability for highly non-equilibrium flows.
Original language | English |
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Article number | 40008 |
Number of pages | 7 |
Journal | EPL: A Letters Journal Exploring the Frontiers of Physics |
Volume | 83 |
Issue number | 4 |
DOIs | |
Publication status | Published - 19 Aug 2008 |
Keywords
- computational methods
- statistical physics
- nonlinear dynamics
- fluid dynamics
- gas dynamics
- lattice Boltzmann approach