A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods

doi:10.1016/j.jcp.2019.01.010

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	A hydrodynamic stress model for simulating turbulence/particle interactions with immersed boundary methods
	Wang SZ(王士召); Vanella M ; Balaras E
发表期刊	JOURNAL OF COMPUTATIONAL PHYSICS
	2019-04-01
卷号	382 页码:240-263
ISSN	0021-9991
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.
关键词	Hydrodynamic stress model Immersed boundary method Particle-resolved direct numerical simulations
DOI	10.1016/j.jcp.2019.01.010
收录类别	SCI
语种	英语
WOS记录号	WOS:000458621600014
关键词[WOS]	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
WOS类目	Computer Science ; Physics
项目资助者	ONR [N000141110455] ; U.S. Department of Energy, Nuclear Energy University Program (DOE-NEUP) Grant [12-3549] ; China Scholarship Council [201404910164]
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Balaras, E
引用统计	被引频次：24[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/311007/78459
专题	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. 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.(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.

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