The contribution of dilatational motion to energy flux in homogeneous compressible turbulence
文献类型：期刊论文
| 作者 | Luo, Chensheng2,3,4,5; Fang, Le2,3; Fang, Jian6; Xu, Haitao7,8; Pumir, Alain9; Yang PF(杨平凡)1,4,5,7,8 |
| 刊名 | JOURNAL OF FLUID MECHANICS
 |
| 出版日期 | 2025-08-28 |
| 卷号 | 1018页码:23 |
| 关键词 | compressible turbulence turbulence theory homogeneous turbulence |
| ISSN号 | 0022-1120 |
| DOI | 10.1017/jfm.2025.10522 |
| 通讯作者 | Yang, Ping-Fan(yangpingfan@nwpu.edu.cn) |
| 英文摘要 | We analyse the energy flux in compressible turbulence by generalizing the exact decomposition recently proposed by Johnson (2020 Phys. Rev. Lett. 124, 104501) to study incompressible turbulent flows. This allows us to characterize the effect of dilatational motion on the interscale energy transfer in three-dimensional compressible turbulence. Our analysis reveals that the contribution of dilatational motion to energy transfer is due to three different physical mechanisms: the interaction between dilatation and strain; between dilatation and vorticity; and the self-interaction of dilatational motion across scales. By analysing numerical simulations of freely decaying and forced turbulence, we validate our theoretical derivations and provide a quantitative description of the role of solenoidal and dilatational motions in energy transfer. In particular, we determine the scaling dependence of the dilatational contributions on the turbulent Mach number. Moreover, our findings provide criteria for tuning the parameters in commonly used Smagorinsky and Yoshizawa models for large-eddy simulations of compressible turbulence. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | DIRECT NUMERICAL-SIMULATION ; LARGE-EDDY SIMULATION ; STATISTICAL-THEORY ; DISSIPATION ; EQUATION ; SCHEME ; TENSOR |
| 资助项目 | National Natural Science Foundation of China (NSFC)[12202452] ; National Natural Science Foundation of China (NSFC)[11672157] ; National Natural Science Foundation of China (NSFC)[91852104] ; National Natural Science Foundation of China (NSFC)[12372214] ; National Natural Science Foundation of China (NSFC)[23FAA01491] ; Fundamental Research Funds for Central University[D5000240110] ; French Agence Nationale de la Recherche[ANR-20-CE30-0035] ; Max Planck Institute for Dynamics and Self-organisation (Goettingen, Germany) |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001558890100001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for Central University ; French Agence Nationale de la Recherche ; Max Planck Institute for Dynamics and Self-organisation (Goettingen, Germany) |
| 其他责任者 | 杨平凡 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103626]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 作者单位 | 1.Natl Key Lab Aircraft Configurat Design, Xian 710072, Peoples R China 2.Beihang Univ, Ecole Cent Pekin, Sch Gen Engn, Lab Complex Syst, Beijing 100191, Peoples R China; 3.Beihang Univ, Res Inst Aeroengine, Beijing 100191, Peoples R China; 4.Northwestern Polytech Univ, Inst Extreme Mech, Xian 710072, Peoples R China; 5.Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China; 6.Chinese Acad Sci, LHD, Inst Mech, Beijing 100190, Peoples R China; 7.Tsinghua Univ, Ctr Combust Energy, Beijing 100084, Peoples R China; 8.Tsinghua Univ, Sch Aerosp Engn, Beijing 100084, Peoples R China; 9.Univ Lyon, CNRS, Ecole Normale Super Lyon, Lab Phys, F-69007 Lyon, France; |
| 推荐引用方式 GB/T 7714 | Luo, Chensheng,Fang, Le,Fang, Jian,et al. The contribution of dilatational motion to energy flux in homogeneous compressible turbulence[J]. JOURNAL OF FLUID MECHANICS,2025,1018:23. |
| APA | Luo, Chensheng,Fang, Le,Fang, Jian,Xu, Haitao,Pumir, Alain,&杨平凡.(2025).The contribution of dilatational motion to energy flux in homogeneous compressible turbulence.JOURNAL OF FLUID MECHANICS,1018,23. |
| MLA | Luo, Chensheng,et al."The contribution of dilatational motion to energy flux in homogeneous compressible turbulence".JOURNAL OF FLUID MECHANICS 1018(2025):23. |
入库方式： OAI收割
来源：力学研究所
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