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Title:
A Pressure-Correction Method And Its Applications On An Unstructured Chimera Grid
Author: Zhang X(张星); Ni SZ(倪赛珍); He GW(何国威)
Source: Computers & Fluids
Issued Date: 2008
Pages: 993-1010
Abstract: In this paper, an unstructured Chimera mesh method is used to compute incompressible flow around a rotating body. To implement the pressure correction algorithm on unstructured overlapping sub-grids, a novel interpolation scheme for pressure correction is proposed. This indirect interpolation scheme can ensure a tight coupling of pressure between sub-domains. A moving-mesh finite volume approach is used to treat the rotating sub-domain and the governing equations are formulated in an inertial reference frame. Since the mesh that surrounds the rotating body undergoes only solid body rotation and the background mesh remains stationary, no mesh deformation is encountered in the computation. As a benefit from the utilization of an inertial frame, tensorial transformation for velocity is not needed. Three numerical simulations are successfully performed. They include flow over a fixed circular cylinder, flow over a rotating circular cylinder and flow over a rotating elliptic cylinder. These numerical examples demonstrate the capability of the current scheme in handling moving boundaries. The numerical results are in good agreement with experimental and computational data in literature. (C) 2007 Elsevier Ltd. All rights reserved.
Keyword: Navier-Stokes Equations ; Rotating Circular-Cylinder ; Reynolds-Numbers ; Incompressible Flows ; Meshes ; Computation ; Simulation
Language: 英语
Indexed Type: SCI
Corresponding Author: Zhang, X (reprint author), Chinese Acad Sci, Inst Mech, State Key LNM, Beijing 100080, Peoples R China.
Correspondent Email: zhangx@lnm.imech.ac.cn ; nisaizhen@lnm.imech.ac.cn ; hgw@lnm.imech.ac.cn
DOI: 10.1016/j.compfluid.2007.07.019
DOC Type: Article
WOS Subject: Computer Science, Interdisciplinary Applications ; Mechanics
WOS Subject Extended: Computer Science ; Mechanics
WOS Keyword Plus: NAVIER-STOKES EQUATIONS ; ROTATING CIRCULAR-CYLINDER ; REYNOLDS-NUMBERS ; INCOMPRESSIBLE FLOWS ; MESHES ; COMPUTATION ; SIMULATION
WOS ID: WOS:000258022200006
ISSN: 0045-7930
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/25956
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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Recommended Citation:
Zhang X,Ni SZ,He GW. A Pressure-Correction Method And Its Applications On An Unstructured Chimera Grid[J]. Computers & Fluids,2008-01-01:993-1010.
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