A non-equilibrium slip wall model for large-eddy simulation with an immersed boundary method
文献类型：期刊论文
| 作者 | Shi, Beiji1,2; Xu, Zhaoyue1,2; Wang, Shizhao1,2 ; Wang SZ(王士召); Wang SZ(王士召); Wang SZ(王士召)
|
| 刊名 | AIP ADVANCES
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 12期号:9页码:12 |
| DOI | 10.1063/5.0101010 |
| 通讯作者 | Wang, Shizhao(wangsz@lnm.imech.ac.cn) |
| 英文摘要 | A non-equilibrium wall model for large-eddy simulation with the immersed boundary (IB) method is proposed to reduce the required number of grid points in simulating wall-bounded turbulence. The proposed wall model is presented as an appropriate slip velocity on the wall. The slip velocity is constructed by integrating the simplified turbulent boundary layer (TBL) equation along the wall-normal direction, which enhances the integral momentum balance near the wall on a coarse grid. The effect of pressure gradient on the near wall flow is taken into account by retaining the pressure gradient term in the simplified TBL equation. The proposed model is implemented in the form of a direct-forcing IB method with moving-least-square reconstruction near the wall. The benchmarks of plane channel turbulence and the flows over a backward-facing step are used for validation. The proposed model improves the wall stresses and velocity profiles in the region where the pressure gradient dominates the near wall flows. (C) 2022 Author(s). |
| WOS关键词 | DIRECT NUMERICAL-SIMULATION ; FLOW ; LAYER ; DYNAMICS ; AIRFOIL |
| 资助项目 | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[11922214] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000876202700001 |
| 资助机构 | NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90657]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Wang, Shizhao |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Beiji,Xu, Zhaoyue,Wang, Shizhao,et al. A non-equilibrium slip wall model for large-eddy simulation with an immersed boundary method[J]. AIP ADVANCES,2022,12(9):12. |
| APA | Shi, Beiji,Xu, Zhaoyue,Wang, Shizhao,王士召,王士召,&王士召.(2022).A non-equilibrium slip wall model for large-eddy simulation with an immersed boundary method.AIP ADVANCES,12(9),12. |
| MLA | Shi, Beiji,et al."A non-equilibrium slip wall model for large-eddy simulation with an immersed boundary method".AIP ADVANCES 12.9(2022):12. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。