A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods
文献类型：期刊论文
| 作者 | Wang SZ(王士召) ; Vanella M; Balaras E; Wang SZ(王士召)
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| 刊名 | JOURNAL OF COMPUTATIONAL PHYSICS
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| 出版日期 | 2019-04-01 |
| 卷号 | 382页码:240-263 |
| 关键词 | Hydrodynamic stress model Immersed boundary method Particle-resolved direct numerical simulations |
| ISSN号 | 0021-9991 |
| DOI | 10.1016/j.jcp.2019.01.010 |
| 英文摘要 | In this work we propose a hydrodynamic stress model that accurately reconstructs the forces on an immersed body, with application to the simulation of turbulence interacting with finite-size particles of arbitrary shape. The proposed model is local and is based on the boundary layer approximation, where the effects of surface curvature on the pressure variation are accounted for. Numerical experiments show that the model requires about one or two grid points within the boundary layer to accurately reconstruct the hydrodynamic force distribution. This reduces significantly the cost of resolving the flow field around the particles. The accuracy of the proposed model is evaluated in a variety of flows with increasing complexity. In particular, results for the flows over stationary and oscillating circular cylinders, free falling cylinders and spheres, and the interaction of turbulence with spheres and ellipsoids will be presented. (C) 2019 Elsevier Inc. All rights reserved. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | LATTICE-BOLTZMANN SIMULATIONS ; DIRECT NUMERICAL-SIMULATION ; FINITE-DIFFERENCE ; FICTITIOUS DOMAIN ; FLOW ; PARTICLES ; FLUID ; TURBULENT ; FLUIDIZATION ; FORMULATION |
| WOS研究方向 | Computer Science, Interdisciplinary Applications ; Physics, Mathematical |
| 语种 | 英语 |
| WOS记录号 | WOS:000458621600014 |
| 资助机构 | ONR [N000141110455] ; U.S. Department of Energy, Nuclear Energy University Program (DOE-NEUP) Grant [12-3549] ; China Scholarship Council [201404910164] |
| 其他责任者 | Balaras, E |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/78459]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.{Vanella, Marcos、Balaras, Elias} George Washington Univ, Dept Mech & Aerosp Engn, Washington, DC 20052 USA 2.{Wang, Shizhao} Chinese Acad Sci, LNM, Inst Mech, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang SZ,Vanella M,Balaras E,et al. A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2019,382:240-263. |
| APA | 王士召,Vanella M,Balaras E,&Wang SZ.(2019).A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods.JOURNAL OF COMPUTATIONAL PHYSICS,382,240-263. |
| MLA | 王士召,et al."A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods".JOURNAL OF COMPUTATIONAL PHYSICS 382(2019):240-263. |
入库方式： OAI收割
来源：力学研究所
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