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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
Source PublicationJOURNAL OF COMPUTATIONAL PHYSICS
2019-04-01
Volume382Pages:240-263
ISSN0021-9991
AbstractIn 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.
KeywordHydrodynamic stress model Immersed boundary method Particle-resolved direct numerical simulations
DOI10.1016/j.jcp.2019.01.010
Indexed BySCI
Language英语
WOS IDWOS:000458621600014
WOS KeywordLATTICE-BOLTZMANN SIMULATIONS ; DIRECT NUMERICAL-SIMULATION ; FINITE-DIFFERENCE ; FICTITIOUS DOMAIN ; FLOW ; PARTICLES ; FLUID ; TURBULENT ; FLUIDIZATION ; FORMULATION
WOS Research AreaComputer Science, Interdisciplinary Applications ; Physics, Mathematical
WOS SubjectComputer Science ; Physics
Funding OrganizationONR [N000141110455] ; U.S. Department of Energy, Nuclear Energy University Program (DOE-NEUP) Grant [12-3549] ; China Scholarship Council [201404910164]
Classification一类/力学重要期刊
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/78459
Collection非线性力学国家重点实验室
Affiliation1.{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
Recommended Citation
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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