Parallel Program Complex 'Express-3D' for 3D Flows Simulation on Hybrid Computer Systems

摘要

The paper presents a program complex for solving computational fluid dynamics problems, oriented on heterogeneous computer systems. Based on finite volumes method, an explicit difference scheme is constructed for Quasi Gas Dynamic equations system in 3D formulation on arbitrary hexagonal non-orthogonal structured index grid. The use of multi block grids is proposed. To improve the stability condition, the flux relaxation approach is used. The algorithm efficiency was verified on a set of test problems with wide variety of flow types. The speed-up for different computing units was investigated.