| IDDES method based on differential Reynolds-stress model and its application in bluff body turbulent flows | |
Wang, Gang1 ; Li, Quanzheng1; Liu Y(刘毅)2
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| Corresponding Author | Liu, Yi([email protected]) |
| Source Publication | AEROSPACE SCIENCE AND TECHNOLOGY
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| 2021-12-01 | |
| Volume | 119Pages:13 |
| ISSN | 1270-9638 |
| Abstract | A general construction approach for a class of detached-eddy simulation (DES) methods with the turbulent length-scale equation is presented in this study. It supports the rationality of the construction and provides a theoretical estimation of the model coefficients in DES simulation. By using the construction approach, a differential Reynolds-stress model (RSM), referred to as Speziale-Sarkar-Gatski (SSG)/Launder-Reece-Rodi (LRR)-omega RSM, is built into the improved delayed DES (IDDES) method. After calibration of the model parameters in the IDDES method and basic validation for decaying isotropic turbulence, the RSM-based IDDES approach is then applied to simulate the massively separated flows around the tandem cylinders and the transonic buffet flow over a hammerhead launch vehicle. The simulations are validated by the available experimental data, and the performance is evaluated by means of instantaneous, statistical, spectral analysis of the numerical data. It is found that the RSM-based IDDES method shows better performance comparing with the k-omega shear-stress transport (SST)-based IDDES method, especially for predicting the development of massively separated flows behind the bluff body. (c) 2021 Elsevier Masson SAS. All rights reserved. |
| Keyword | Detached-eddy simulation Reynolds-stress model Massively separated flows Tandem cylinders Launch vehicle Transonic buffet |
| DOI | 10.1016/j.ast.2021.107207 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000788607600011 |
| WOS Keyword | DETACHED-EDDY SIMULATION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Liu, Yi |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89106 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China; 2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Gang,Li, Quanzheng,Liu Y. IDDES method based on differential Reynolds-stress model and its application in bluff body turbulent flows[J]. AEROSPACE SCIENCE AND TECHNOLOGY,2021,119:13.Rp_Au:Liu, Yi |
| APA | Wang, Gang,Li, Quanzheng,&刘毅.(2021).IDDES method based on differential Reynolds-stress model and its application in bluff body turbulent flows.AEROSPACE SCIENCE AND TECHNOLOGY,119,13. |
| MLA | Wang, Gang,et al."IDDES method based on differential Reynolds-stress model and its application in bluff body turbulent flows".AEROSPACE SCIENCE AND TECHNOLOGY 119(2021):13. |
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| IDDES method based o（4661KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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