Consistent lattice Boltzmann method

被引:97
作者
Ansumali, S [1 ]
Karlin, IV
机构
[1] ETH, Swiss Fed Inst Technol, Aerothermochem & Combust Syst Lab, CH-8092 Zurich, Switzerland
[2] Nanyang Technol Univ, Sch Chem & Biomed Engn, Singapore 639798, Singapore
关键词
D O I
10.1103/PhysRevLett.95.260605
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Lack of energy conservation in lattice Boltzmann models leads to unrealistically high values of the bulk viscosity. For this reason, the lattice Boltzmann method remains a computational tool rather than a model of a fluid. A novel lattice Boltzmann model with energy conservation is derived from Boltzmann's kinetic theory. Simulations demonstrate that the new lattice Boltzmann model is the valid approximation of the Boltzmann equation for weakly compressible flows and microflows.
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页数:4
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