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Parallel computing strategy for a flow solver based on immersed boundary method and discrete stream-function formulation
Wang SZ(王士召); He GW(何国威); Zhang X(张星); Zhang, X (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Source PublicationCOMPUTERS & FLUIDS
2013-12-15
Volume88Pages:210-224
ISSN0045-7930
AbstractThe development of a parallel immersed boundary solver for flows with complex geometries is presented. The numerical method for incompressible Navier-Stokes equations is based on the discrete stream-function formulation and unstructured Cartesian grid framework. The code parallelization is achieved by using the domain decomposition (DD) approach and Single Program Multiple Data (SPMD) programming paradigm, with the data communication among processes via the MPI protocol. A 'gathering and scattering' strategy is used to handle the force computing on the immersed boundaries. Three tests, 3D lid-driven cavity flow, sedimentation of spheres in a container and flow through and around a circular array of cylinders are performed to evaluate the parallel efficiency of the code. The speedups obtained in these tests on a workstation cluster are reasonably good for the problem size up to 10 million and the number of processes in the range of 16-2048.
KeywordParallelization Domain Decomposition Massage Passing Interface Immersed Boundary Method Discrete Stream-function Formulation
Subject Area流体力学 ; 计算流体力学
DOI10.1016/j.compfluid.2013.09.001
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000329262600019
WOS KeywordPARTICULATE FLOWS ; UNSTRUCTURED GRIDS ; MULTIGRID METHOD ; STOKES SOLVER ; SIMULATION ; IMPLICIT ; COMPUTATIONS ; PERFORMANCE ; SPHERE ; CFD
WOS Research AreaComputer Science ; Mechanics
WOS SubjectComputer Science, Interdisciplinary Applications ; Mechanics
Funding OrganizationChinese Academy of Sciences [KJCX-SW-L08, KJCX3-SYW-S01]; National Natural Science Foundation of China [10702074, 10872201, 11023001]
DepartmentLNM湍流
Classification二类/Q2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47481
Collection非线性力学国家重点实验室
Corresponding AuthorZhang, X (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Wang SZ,He GW,Zhang X,et al. Parallel computing strategy for a flow solver based on immersed boundary method and discrete stream-function formulation[J]. COMPUTERS & FLUIDS,2013,88:210-224.
APA Wang SZ,He GW,Zhang X,&Zhang, X .(2013).Parallel computing strategy for a flow solver based on immersed boundary method and discrete stream-function formulation.COMPUTERS & FLUIDS,88,210-224.
MLA Wang SZ,et al."Parallel computing strategy for a flow solver based on immersed boundary method and discrete stream-function formulation".COMPUTERS & FLUIDS 88(2013):210-224.
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