Supersonic flow simulations by a three-dimensional multispeed thermal model of the finite difference lattice Boltzmann method

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 th...

Full description

Saved in:
Bibliographic Details
Published in:Physica A 2006-05, Vol.364, p.129-144
Main Authors: Watari, Minoru, Tsutahara, Michihisa
Format: Article
Language:English
Subjects:
Couette flow
Finite difference
Lattice Boltzmann method
Laval nozzle
Normal shock
Supersonic flow
Three-dimensional
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0378-4371
1873-2119
DOI:10.1016/j.physa.2005.06.103