An Explicit Algebraic Stress-Based Delayed Detached Eddy Simulation Model for Turbulent Flows
文献类型：期刊论文
| 作者 | Liu HC(刘昊辰)2; Zhang XL(张鑫磊)2; Yin,Zifei1; He GW(何国威)2
|
| 刊名 | AIAA JOURNAL
 |
| 出版日期 | 2024-11-29 |
| 页码 | 12 |
| 关键词 | Computational Fluid Dynamics Detached Eddy Simulation Algebraic Reynolds Stress Model Turbulence Models Separated Flows Turbulent Boundary Layer |
| ISSN号 | 0001-1452 |
| DOI | 10.2514/1.J064894 |
| 通讯作者 | Yin, Zifei(yinzifei@sjtu.edu.cn) |
| 英文摘要 | A new delayed detached eddy simulation (DDES) model under the & ell;2-omega DDES framework is proposed in this work, namely, the explicit algebraic stress DDES (EAS-DDES) model. The model inherently accounts for the modeled stress anisotropy, making it outperforms the traditional linear eddy viscosity (LEV) based DES models in complex turbulent flows, especially when near-wall stress anisotropy becomes pronounced. The switching between the Reynolds-averaged Navier-Stokes (RANS) and large eddy simulation (LES) branches is achieved based on the & ell;2-omega DDES framework. The explicit algebraic stress formula does not notably compromise the computational effort, stability, and robustness of the DDES model. Four test cases are simulated to assess the performance of the proposed EAS-DDES model. The first two cases are fully developed channel flows and flow over the backward-facing step, showing that the new EAS-DDES model has similar predictive performance to the LEV-based & ell;2-omega DDES model. The other two cases are square duct and rotating channel flows, where modeling the Reynolds stress anisotropy in secondary and rotating flows is crucial to predict the correct flow statistics. The accuracy of the EAS-DDES model compared with the LEV-based DDES models is significantly improved due to the reasonable prediction of near-wall modeled stress anisotropy. The new EAS-DDES model provides an advanced option for the DES of complex turbulent flows when the LEV assumption is problematic. |
| 分类号 | 一类/力学重要期刊 |
| WOS关键词 | DDES ; FORMULATION ; DES |
| 资助项目 | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809[11988102] ; NSFC Basic Science Center Program[12472226] ; National Natural Science Foundation of China[2022QNRC001] ; Young Elite Scientists Sponsorship Program by CAST |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001367627800001 |
| 资助机构 | National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809 ; NSFC Basic Science Center Program ; National Natural Science Foundation of China ; Young Elite Scientists Sponsorship Program by CAST |
| 其他责任者 | Yin, Zifei |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/97603]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Aeronaut Astronaut, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Liu HC,Zhang XL,Yin,Zifei,et al. An Explicit Algebraic Stress-Based Delayed Detached Eddy Simulation Model for Turbulent Flows[J]. AIAA JOURNAL,2024:12. |
| APA | 刘昊辰,张鑫磊,Yin,Zifei,&何国威.(2024).An Explicit Algebraic Stress-Based Delayed Detached Eddy Simulation Model for Turbulent Flows.AIAA JOURNAL,12. |
| MLA | 刘昊辰,et al."An Explicit Algebraic Stress-Based Delayed Detached Eddy Simulation Model for Turbulent Flows".AIAA JOURNAL (2024):12. |
入库方式： OAI收割
来源：力学研究所
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