Lattice Boltzmann k- w SST based hybrid RANS/LES simulations of turbulent flows
文献类型：期刊论文
| 作者 | Mozaffari, Sajad3; Cai SG(蔡尚炅)1,2,3; Jacob, Jerome3; Sagaut, Pierre3 |
| 刊名 | JOURNAL OF COMPUTATIONAL PHYSICS
 |
| 出版日期 | 2024-10-01 |
| 卷号 | 514页码:21 |
| 关键词 | Hybrid RANS/LES Lattice Boltzmann method (LBM) Turbulence modeling High Reynolds numbers |
| ISSN号 | 0021-9991 |
| DOI | 10.1016/j.jcp.2024.113269 |
| 通讯作者 | Cai, Shang-Gui(shanggui.cai@imech.ac.cn) |
| 英文摘要 | High Reynolds number simulations with lattice Boltzmann method (LBM) have been computationally feasible by means of turbulence models for under-resolved physical scales. Hybrid RANS/LES models are efficient alternatives to accurate but computationally expensive LES techniques. This study investigates extensively the hybrid RANS/LES models in the LBM framework for complex wall-bounded turbulent flow simulations on non-body fitting Cartesian grids. The hybridization processes for these models are applied to a widely used two-equation RANS base model, specifically the k-omega SST turbulence model. The functionality of these hybrid models is validated through the simulation of a three-dimensional fully turbulent flow over an airfoil. In addition, they are assessed by performing LBM simulations of flows surrounding a generic vehicle geometry, the Ahmed body, in order to reproduce the solution of a similar simulation by conventional CFD methods and to compare with wind tunnel experimental data. It is found that the near-wall treatments have significant impacts on the local boundary flow structures and possible remedies are also discussed. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | LARGE-EDDY SIMULATIONS ; MODEL ; FORMULATIONS ; SCHEMES |
| 资助项目 | ANR Industrial Chair ALBUMS[ANR-18-CHIN-0003-01] ; French project BALBUZARD - DGAC ; EU |
| WOS研究方向 | Computer Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001272412900001 |
| 资助机构 | ANR Industrial Chair ALBUMS ; French project BALBUZARD - DGAC ; EU |
| 其他责任者 | Cai, Shang-Gui |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/96035]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China; 3.Aix Marseille Univ, Cent Marseille, CNRS, M2P2,UMR 7340, 38 Rue Joliot Curie, F-13451 Marseille, France; |
| 推荐引用方式 GB/T 7714 | Mozaffari, Sajad,Cai SG,Jacob, Jerome,et al. Lattice Boltzmann k- w SST based hybrid RANS/LES simulations of turbulent flows[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2024,514:21. |
| APA | Mozaffari, Sajad,蔡尚炅,Jacob, Jerome,&Sagaut, Pierre.(2024).Lattice Boltzmann k- w SST based hybrid RANS/LES simulations of turbulent flows.JOURNAL OF COMPUTATIONAL PHYSICS,514,21. |
| MLA | Mozaffari, Sajad,et al."Lattice Boltzmann k- w SST based hybrid RANS/LES simulations of turbulent flows".JOURNAL OF COMPUTATIONAL PHYSICS 514(2024):21. |
入库方式： OAI收割
来源：力学研究所
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