Some Progress in Lattice Boltzmann Method. Part I. Nonuniform Mesh Grids
✍ Scribed by Xiaoyi He; Li-Shi Luo; Micah Dembo
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 343 KB
- Volume
- 129
- Category
- Article
- ISSN
- 0021-9991
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✦ Synopsis
A new lattice Boltzmann algorithm is proposed to simulate the Navier-Stokes equation on arbitrary nonuniform mesh grids. The the discretization of physical space is coupled with the new algorithm retains the advantages of the lattice Boltzmann discretization of momentum space. The first LB model method: parallel of algorithm, ease of programming, and ability to was a floating-point version of its LGA counterpart-each incorporate microscopic interactions. A simulation of flow in a twoparticle in the LGA model (represented by a single-bit dimensional symmetric channel with sudden expansion is carried Boolean integer) was replaced by a single-particle distribuout using the new algorithm on a nonuniform mesh. The results of the simulation are in excellent agreement with previous experimention function, f Ͱ , in the LB model (represented by floatingtal and numerical results.