Improvement of Baldwin-Lomax turbulence model for supersonic complex flows
文献类型：期刊论文
| 作者 | Zhao R(赵瑞); Yan C(阎超); Yu J(于剑); Li XL(李新亮)
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| 刊名 | CHINESE JOURNAL OF AERONAUTICS
 |
| 出版日期 | 2013-06 |
| 卷号 | 26期号:3页码:529–534 |
| 通讯作者邮箱 | zhaorui@ase.buaa.edu.cn; yanchao@buaa.edu.cn; yujian@ase.buaa.edu.cn; lixl@lnm.imech.ac.cn |
| ISSN号 | 1000-9361 |
| 关键词 | Baldwin-Lomax model Boundary layers Computational aerodynamics Entropy Supersonic flows Turbulence models |
| 通讯作者 | Yan, C (reprint author), Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China. |
| 产权排序 | [Zhao, Rui; Yan, Chao; Yu, Jian] Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; [Li, Xinliang] Chinese Acad Sci, Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 合作状况 | 国内 |
| 中文摘要 | Entropy represents the dissipation rate of energy. Through direct numerical simulation (DNS) of supersonic compression ramp flow, we find the value of entropy is monotonously decreasing along the wall-normal direction no matter in the attached or the separated region. Based on this feature, a new version of Baldwin-Lomax turbulence model (BL-entropy) is proposed in this paper. The supersonic compression ramp and cavity-ramp flows in which the original Baldwin-Lomax model fails to get convergent solutions are chosen to evaluate the performance of this model. Results from one-equation Spalart-Allmaras model (SA) and two-equation Wilcox κ-ω model are also included to compare with available experimental and DNS data. It is shown that BL-entropy could conquer the essential deficiency of the original version by providing a more physically meaningful length scale in the complex flows. Moreover, this method is simple, computationally efficient and general, making it applicable to other models related with the supersonic boundary layer. |
| 学科主题 | 流体力学 ; 湍流 |
| 分类号 | 二类 |
| 资助信息 | National Basic Research Program of China [2009CB724104]; Innovation Foundation of BUAA for Ph.D. Graduates [300521]; Academic New Artist Award of BUAA for Ph.D. Graduates |
| 收录类别 | SCI ; EI ; CSCD |
| 原文出处 | http://dx.doi.org/10.1016/j.cja.2013.04.047 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321106800004 |
| 公开日期 | 2013-09-21 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/47442]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Zhao R,Yan C,Yu J,et al. Improvement of Baldwin-Lomax turbulence model for supersonic complex flows[J]. CHINESE JOURNAL OF AERONAUTICS,2013,26(3):529–534. |
| APA | Zhao R,Yan C,Yu J,&Li XL.(2013).Improvement of Baldwin-Lomax turbulence model for supersonic complex flows.CHINESE JOURNAL OF AERONAUTICS,26(3),529–534. |
| MLA | Zhao R,et al."Improvement of Baldwin-Lomax turbulence model for supersonic complex flows".CHINESE JOURNAL OF AERONAUTICS 26.3(2013):529–534. |
入库方式： OAI收割
来源：力学研究所
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