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A novel large-eddy simulation framework with consistently enforced wall models by a near-wall dynamic correction procedure

文献类型：期刊论文

作者Gao, Runze1,2; Lv, Yu1,2
刊名PHYSICS OF FLUIDS
出版日期2025-03-01
卷号37期号:3页码:19
ISSN号1070-6631
DOI10.1063/5.0255193
通讯作者Lv, Yu(lvyu@imech.ac.cn)
英文摘要The wall modeling technique has been a critical enabler for high-fidelity simulations of turbulent wall-bounded flows at realistic Reynolds numbers. However, the robustness of the wall stress model enforcement may be compromised by inadequate near-wall resolution, excessive filtering effect, and numerical dissipation. We find that numerical dissipation (and excessive subgrid-scale dissipation) can severely influence the accuracy and robustness of the performance of wall models in large-eddy simulations (LESs), leading to significant inconsistency in near-wall LES solutions. To address the adverse effects of numerical dissipation on high-fidelity flow simulations, we develop a wall-modeled LES computational framework to consistently enforce the wall models, based on a novel dynamic correction procedure to effectively penalize the discrepancy between the LES and wall-model represented solutions. The proposed computational framework is assessed for LES solvers of various levels of dissipation through numerical experiments on channel flow and internal separating flow configurations. The results indicate that the proposed numerical method effectively improves the LES quality, enforcing a wall-model consistent LES solution and leading to improved accuracy in predicting characteristic flow behaviors. Additionally, the developed wall-modeled large-eddy simulation framework demonstrates reduced sensitivity to numerical and physical dissipation, as well as to a more consistent convergence behavior with respect to mesh refinement.
WOS关键词BOUNDARY-CONDITIONS ; FLOWS
资助项目National Natural Science Foundation of China10.13039/501100001809[12472298] ; National Natural Science Foundation of China10.13039/501100001809[11988102] ; NSFC[025GJHZ2022112FN] ; International Partnership Program of Chinese Academy of Sciences
WOS研究方向Mechanics ; Physics
语种英语
WOS记录号WOS:001437510800045
资助机构National Natural Science Foundation of China10.13039/501100001809 ; NSFC ; International Partnership Program of Chinese Academy of Sciences
源URL[http://dspace.imech.ac.cn/handle/311007/100211]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Lv, Yu
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100190, 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		 Gao, Runze,Lv, Yu. A novel large-eddy simulation framework with consistently enforced wall models by a near-wall dynamic correction procedure[J]. PHYSICS OF FLUIDS,2025,37(3):19.
APA Gao, Runze,&Lv, Yu.(2025).A novel large-eddy simulation framework with consistently enforced wall models by a near-wall dynamic correction procedure.PHYSICS OF FLUIDS,37(3),19.
MLA Gao, Runze,et al."A novel large-eddy simulation framework with consistently enforced wall models by a near-wall dynamic correction procedure".PHYSICS OF FLUIDS 37.3(2025):19.

入库方式： OAI收割

来源：力学研究所

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