| 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.
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| Source Publication | COMPUTERS & FLUIDS
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| 2013-12-15 | |
| Volume | 88Pages:210-224 |
| ISSN | 0045-7930 |
| Abstract | 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. |
| Keyword | Parallelization Domain Decomposition Massage Passing Interface Immersed Boundary Method Discrete Stream-function Formulation |
| Subject Area | 流体力学 ; 计算流体力学 |
| DOI | 10.1016/j.compfluid.2013.09.001 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000329262600019 |
| WOS Keyword | PARTICULATE FLOWS ; UNSTRUCTURED GRIDS ; MULTIGRID METHOD ; STOKES SOLVER ; SIMULATION ; IMPLICIT ; COMPUTATIONS ; PERFORMANCE ; SPHERE ; CFD |
| WOS Research Area | Computer Science ; Mechanics |
| WOS Subject | Computer Science, Interdisciplinary Applications ; Mechanics |
| Funding Organization | Chinese Academy of Sciences [KJCX-SW-L08, KJCX3-SYW-S01]; National Natural Science Foundation of China [10702074, 10872201, 11023001] |
| Department | LNM湍流 |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/47481 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Zhang, 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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