Parallel computing strategy for a flow solver based on immersed boundary method and discrete stream-function formulation

doi:10.1016/j.compfluid.2013.09.001

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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.
发表期刊	COMPUTERS & FLUIDS
	2013-12-15
卷号	88 页码:210-224
ISSN	0045-7930
摘要	The 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.
关键词	Parallelization Domain Decomposition Massage Passing Interface Immersed Boundary Method Discrete Stream-function Formulation
学科领域	流体力学 ; 计算流体力学
DOI	10.1016/j.compfluid.2013.09.001
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000329262600019
关键词[WOS]	PARTICULATE FLOWS ; UNSTRUCTURED GRIDS ; MULTIGRID METHOD ; STOKES SOLVER ; SIMULATION ; IMPLICIT ; COMPUTATIONS ; PERFORMANCE ; SPHERE ; CFD
WOS研究方向	Computer Science ; Mechanics
WOS类目	Computer Science, Interdisciplinary Applications ; Mechanics
项目资助者	Chinese Academy of Sciences [KJCX-SW-L08, KJCX3-SYW-S01]; National Natural Science Foundation of China [10702074, 10872201, 11023001]
课题组名称	LNM湍流
论文分区	二类/Q2
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/47481
专题	非线性力学国家重点实验室
通讯作者	Zhang, X (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
推荐引用方式 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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