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 | |
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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