Prasianakis Nikolaos I, Karlin Iliya V
Aerothermochemistry and Combustion Systems Laboratory, ETH Zurich, 8092 Zurich, Switzerland.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jul;78(1 Pt 2):016704. doi: 10.1103/PhysRevE.78.016704. Epub 2008 Jul 21.
The recently introduced lattice Boltzmann model for thermal flow simulation on a standard lattice [Prasianakis and Karlin, Phys. Rev. E 76, 016702 (2007)] is studied numerically in the case where compressibility effects are essential. It is demonstrated that the speed of sound and shock propagation are described correctly in a wide temperature range, and that it is possible to take into account additional physics such as heat sources and sinks. A remarkable simplicity of the model makes it viable for engineering applications in subsonic flows with large temperature and density variations.
针对标准晶格上热流模拟的最近引入的格子玻尔兹曼模型[普拉西亚纳基斯和卡林，《物理评论E》76，016702(2007)]，在可压缩性效应至关重要的情况下进行了数值研究。结果表明，在很宽的温度范围内，声速和激波传播都能得到正确描述，并且有可能考虑诸如热源和热汇等附加物理因素。该模型的显著简单性使其在温度和密度变化较大的亚声速流的工程应用中切实可行。
