High performance parallel computing for Computational Fluid Dynamics (CFD) - Second Report

Aerodynamic characteristics of spherical objects assuming flying objects in an explosion were calculated by Computational Fluid Dynamics (CFD) using a parallel computer that is equipped with InfiniBand as a high-speed communication system and that can use a maximum 32 CPUs. CFD++ is general purpose CFD software to solve three-dimensional Navier-Stokes equations that represent characteristic of fluid viscosity and compressibility by using finite volume method. InfiniBand is effective in the calculations of aerodynamic characteristics by CFD. The calculation time could be shortened by a maximum of about five times compared with conventional communication systems. And also “CFD++” was used in analyzing the propagation of air blasts and was found that the TVD scheme was effective in forecasting the propagation of air blasts in comparison with experimental values.