Abstract
Generalized Interpolation-based Lattice Boltzmann method (GILBM) is one of the numerical analysis methods developed from a basically Lattice Boltzmann method in order to apply to body fitted grids. By transformation of coordinate system, GILBM overcomes a fundamental problem in the LBM. However, the GILBM has a same problem as other CFD methods, that computational time increase in case applying to high Reynolds number and large-scale analysis. So, this paper investigates applications of GILBM to parallel computing for a means of reduction on computational time. In the present study, incompressible two-dimensional cavity flow is calculated in MPI environments for parallel computing system based on domain decomposition. By the system, improvement of calculation speed and parallel efficiency is investigated to verify effectiveness of parallelization GILBM and high performance technique. It will be shown that the present method is verified be effective extremely by comparisons with other CFD results.
