中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 非线性力学国家重点实验室
Large Eddy Simulation of Separated Flows on Unconventionally Coarse Grids

文献类型：期刊论文

作者Bin, Yuanwei3,4; Park, George I2; Lv Y(吕钰)1; Yang, Xiang IA4
刊名JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
出版日期2024-09-01
卷号146期号:9页码:13
ISSN号0098-2202
DOI10.1115/1.4064851
通讯作者Park, George I.(gipark@seas.upenn.edu)
英文摘要We examine and benchmark the emerging idea of applying the large eddy simulation (LES) formalism to unconventionally coarse grids where Reynolds-averaged Navier-Stokes (RANS) would be considered more appropriate at first glance. We distinguish this idea from very large eddy simulation and detached eddy simulation, which require switching between RANS and LES formalism. LES on RANS grid is appealing because first, it requires minimal changes to a production code; second, it is more cost-effective than LES; third, it converges to LES; and most importantly, it accurately predicts flows with separation. This work quantifies the benefit of LES on RANS-like grids as compared to RANS on the same grids. Three canonical cases are considered: periodic hill, backward-facing step, and jet in cross flow. We conduct direct numerical simulation (DNS), proper LES on LES grids, LES on RANS-quality grids, and RANS. We show that while the LES solutions on the RANS-quality grids are not grid converged, they are twice as accurate as the RANS on the same grids.
分类号Q3
资助项目National Natural Science Foundation of China[91752202] ; Directorate for Engineering[2241730]
WOS研究方向Engineering
语种英语
WOS记录号WOS:001274879400006
资助机构National Natural Science Foundation of China ; Directorate for Engineering
其他责任者Park, George I.
源URL[http://dspace.imech.ac.cn/handle/311007/96193]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.Univ Penn, Mech Engn & Appl Mech, Philadelphia, PA 19104 USA;
3.Peking Univ, State Key Lab Turbulence & Complex Syst, Beijing 100871, Peoples R China;
4.Penn State Univ, Dept Mech Engn, University Pk, PA 16802 USA;
推荐引用方式
GB/T 7714		 Bin, Yuanwei,Park, George I,Lv Y,et al. Large Eddy Simulation of Separated Flows on Unconventionally Coarse Grids[J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME,2024,146(9):13.
APA Bin, Yuanwei,Park, George I,吕钰,&Yang, Xiang IA.(2024).Large Eddy Simulation of Separated Flows on Unconventionally Coarse Grids.JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME,146(9),13.
MLA Bin, Yuanwei,et al."Large Eddy Simulation of Separated Flows on Unconventionally Coarse Grids".JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME 146.9(2024):13.

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。