Coupling HPC and Numerical Validation: Accurate and Efficient Simulation of Large-scale Hydrodynamic Events

被引：0

作者：

Moulinec, C. ^{[1
]}

Denis, C. ^{[2
]}

Durand, N. ^{[3
]}

Barber, R. W. ^{[1
]}

Emerson, D. R. ^{[1
]}

Gu, X. J. ^{[1
]}

Razafindrakoto, E. ^{[3
]}

Issa, R. ^{[3
]}

Hervouet, J. -M. ^{[3
]}

机构：

[1] STFC Daresbury Lab, Warrington, Cheshire, England

[2] SINETICS, EDF R&D, Clamart, France

[3] LNHE, EDF R&D, Chatou, France

来源：

PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON PARALLEL, DISTRIBUTED, GRID AND CLOUD COMPUTING FOR ENGINEERING | 2011年 / 95卷

基金：

英国工程与自然科学研究理事会;

关键词：

hydrodynamics; HPC; numerical validation; numerical simulation; round-off error propagation; flooding;

D O I：

暂无

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper highlights the HPC capabilities of TELEMAC-2D, a Finite Element shallow water equation code developed by EDF R&D. A demonstration test case using a 12-million element grid is presented of the flow in the Gironde Estuary in southwest France. Preliminary tests are performed to study round-off error propagation which might be amplified when running HPC simulations. The original mesh of the estuary containing approximately 0.2 million elements is successively refined by splitting each triangular element into four sub-elements to obtain meshes containing 0.8, 3 and 12 million elements, respectively. The paper details the scaling performance of the code and also shows that the predicted free surface elevation within the estuary is affected by the mesh resolution.

引用

页数：11

共 4 条

[1]

[Anonymous], 2007, Hydrodynamics of free surface flows: modelling with the finite element method

[2]

Denis C., PAR CFD 2010 17 21 M

[3]

Denis C, 2010, LECT NOTES COMPUT SC, V6068, P330

[4] A STOCHASTIC ARITHMETIC FOR RELIABLE SCIENTIFIC COMPUTATION [J].

VIGNES, J .

MATHEMATICS AND COMPUTERS IN SIMULATION, 1993, 35 (03) :233-261

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