Assessment of Regularized Ensemble Kalman Method for Inversion of Turbulence Quantity Fields
文献类型：期刊论文
| 作者 | Zhang, Xin-Lei2; Xiao, Heng1; He, Guowei2; He GW(何国威) ; He GW(何国威)
|
| 刊名 | AIAA JOURNAL
 |
| 出版日期 | 2021-11-24 |
| 页码 | 11 |
| ISSN号 | 0001-1452 |
| DOI | 10.2514/1.J060976 |
| 通讯作者 | Zhang, Xin-Lei(zhangxinlei@imech.ac.cn) |
| 英文摘要 | This paper introduces an ensemble-based field inversion framework to augment the turbulence models by incorporating prior physical knowledge. Different types of prior knowledge such as smoothness, prior values, and sparsity are enforced to improve the inference of the eddy viscosity and laminar-turbulent intermittency. This work first assesses the method on the problems of inferring eddy viscosity in the Reynolds-averaged Navier-Stokes equation from the velocity observation data for separated flows over periodic hills. Further, the method is used to infer the intermittency field in the transport equation of turbulent kinetic energy from measurements of the friction coefficient for transitional flows over a plate. The results demonstrate the performance of the regularized ensemble method by enforcing prior knowledge into the inference. The method serves as a useful inverse modeling tool to augment the turbulence model from observation data. |
| WOS关键词 | DATA ASSIMILATION ; MODEL ; SIMULATION ; CHANNEL ; FLOW |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11988102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040104] ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences[QYZDJ-SSWSYS002] ; China Postdoctoral Science Foundation[2021M690154] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000733776900001 |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of Frontier Sciences of the Chinese Academy of Sciences ; China Postdoctoral Science Foundation |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/88163]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Zhang, Xin-Lei |
| 作者单位 | 1.Virginia Tech, Blacksburg, VA 24060 USA 2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xin-Lei,Xiao, Heng,He, Guowei,et al. Assessment of Regularized Ensemble Kalman Method for Inversion of Turbulence Quantity Fields[J]. AIAA JOURNAL,2021:11. |
| APA | Zhang, Xin-Lei,Xiao, Heng,He, Guowei,何国威,&He GW.(2021).Assessment of Regularized Ensemble Kalman Method for Inversion of Turbulence Quantity Fields.AIAA JOURNAL,11. |
| MLA | Zhang, Xin-Lei,et al."Assessment of Regularized Ensemble Kalman Method for Inversion of Turbulence Quantity Fields".AIAA JOURNAL (2021):11. |
入库方式： OAI收割
来源：力学研究所
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