期刊
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
卷 364, 期 -, 页码 129-144出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2005.06.103
关键词
finite difference; lattice Boltzmann method; three-dimensional; Couette flow; supersonic flow; laval nozzle; normal shock
A three-dimensional multispeed thermal model of the finite difference lattice Boltzmann method (FDLBM) is proposed. In the FDLBM we can select particle velocities independently from the lattice configuration. Particle velocities of the proposed model consist of vectors pointing to the vertex from the center of a dodecahedron and icosahedron. The model stably performs simulations in a wide range, from subsonic to supersonic flows. To verify the model, simulations of Couette flow, normal shock wave and supersonic nozzle are performed. All results agree with the theoretical predictions. (c) 2005 Elsevier B.V. All rights reserved.
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