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. 过程工程研究所
  3. 中国科学院过程工程研究所
A dual-eddy EMMS-based turbulence model for laminar-turbulent transition prediction

文献类型：期刊论文

作者Guo, Shuyu1,2; Wang, Limin1,2,3
刊名PARTICUOLOGY
出版日期2021-10-01
卷号58页码:285-298
关键词Turbulent flows Laminar-turbulent transition EMMS Turbulence model Multiscale structure
ISSN号1674-2001
DOI10.1016/j.partic.2021.04.005
英文摘要Turbulence is a century-old physics problem, and the prediction of laminar-turbulent transition remains a major challenge in computational fluid dynamics (CFD). This paper proposes a new conceptual multiscalestructure flow system consisting of a nonturbulent part and two types of turbulent eddies with different properties. The stability criterion for turbulent transition flows, based on the principle of compromise in-competition between viscosity and inertia, is used to obtain model closure. The multiscale-structure concept and stability criterion are the characteristics of the dual-eddy energy-minimization multiscale (EMMS)-based turbulence model. The solved heterogeneous structure parameters and energy dissipation rate are analyzed, which reveal the laminar-turbulent transition process. To validate the dual-eddy EMMS-based turbulence model, three benchmark problems, namely, the transitional flows over the flat plate boundary layer with zero pressure gradient, NACA0012, and Aerospatiale-A airfoils, were simulated. The simulation was performed by combining the optimized results from the proposed model with the equations of the well-known k - omega shear stress transfer (SST) turbulence model. The numerical results show that the dual-eddy EMMS-based turbulence model improves the prediction in the laminar-turbulent transition process. This demonstrates the soundness of using the multiscale-structure concept in turbulent flows to establish the turbulence transition model by considering the principle of compromise-in-competition between viscosity and inertia. (c) 2021 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS关键词STABILITY CONDITION ; FLOW ; MULTISCALE ; MESOSCALES ; VISCOSITY ; BREAKUP ; DROP ; PATH
资助项目National Key R&D Program of China[2018YFB1500902] ; National Numerical Wind Tunnel Project of China[NNW2020ZT1-A20] ; National Natural Science Foundation of China[51776212] ; National Natural Science Foundation of China[91434113] ; Chinese Academy of Sciences[QYZDB-SSW-SYS029]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000702828200002
出版者ELSEVIER SCIENCE INC
资助机构National Key R&D Program of China ; National Numerical Wind Tunnel Project of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/50288]  
专题中国科学院过程工程研究所
通讯作者Wang, Limin
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Shuyu,Wang, Limin. A dual-eddy EMMS-based turbulence model for laminar-turbulent transition prediction[J]. PARTICUOLOGY,2021,58:285-298.
APA Guo, Shuyu,&Wang, Limin.(2021).A dual-eddy EMMS-based turbulence model for laminar-turbulent transition prediction.PARTICUOLOGY,58,285-298.
MLA Guo, Shuyu,et al."A dual-eddy EMMS-based turbulence model for laminar-turbulent transition prediction".PARTICUOLOGY 58(2021):285-298.

入库方式： OAI收割

来源：过程工程研究所

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。