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

Authors:
Alexander A. Davydov
Evgeny V. Shilnikov

Keywords: quasi gas dynamic equations; explicit scheme; finite volume method, nonorthogonal grid; hybrid supercomputer architecture

Abstract:
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.

Pages: 29 to 34

Copyright: Copyright (c) IARIA, 2016

Publication date: October 9, 2016

Published in: conference

ISSN: 2308-4499

ISBN: 978-1-61208-506-7

Location: Venice, Italy

Dates: from October 9, 2016 to October 13, 2016