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Assessment of the Reynolds-stress model-based hybrid RANS/LES method for junction flow around a fully appended underwater vehicle

文献类型：期刊论文

作者Wang, Gang1,2; Liu Y(刘毅)1,2; Wang SZ(王士召)1,2; He GW(何国威)1,2
刊名OCEAN ENGINEERING
出版日期2025-02-15
卷号318页码:14
关键词Underwater vehicle Junction flow Horseshoe vortex Hybrid RANS/LES method Reynolds-stress model
ISSN号0029-8018
DOI10.1016/j.oceaneng.2024.120073
通讯作者Liu, Yi(liuyi@imech.ac.cn)
英文摘要The hybrid Reynolds-averaged Navier-Stokes (RANS)/large eddy simulation (LES) method has gained prominence in simulating underwater vehicle flows, but its performance heavily depends on the RANS model used. In this paper, we evaluate a Reynolds-stress model (RSM)-based improved delayed detached eddy simulation (IDDES) for a fully appended underwater vehicle, compared with the shear-stress transport (SST) model-based IDDES and wall-resolved LES (WRLES). We focused on the sail-hull junction flow, particularly the horseshoe vortex and corner separation. WRLES reproduced the unsteady oscillations of the horseshoe vortex, revealing a "transporting -> merging -> diffusing" evolution process. RSM-IDDES accurately predicted the Reynolds stress anisotropy, resulting in a time-averaged primary vortex (PV) position closer to WRLES than SST-IDDES. The predicted PV position affects the trailing-edge corner separation of the sail through a vorticity suppression effect on the corner vortex strength. Consequently, RSM-IDDES effectively reproduced corner flows similar to WRLES and experimental results, highlighting its advantage in junction flow simulations. A comparison with SST-IDDES demonstrates the sensitivity of IDDES to RANS models, particularly in vortex distribution and Reynolds stress anisotropy, which are crucial for simulations of complex flows around underwater vehicles.
分类号一类
WOS关键词LARGE-EDDY SIMULATION ; AXISYMMETRICAL BODY ; TURBULENCE MODELS ; LES ; SUBMARINE ; DYNAMICS ; VORTEX ; WAKE ; DES
资助项目NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics[11988102] ; CAS Project for Young Scientists in Basic Research[YSBR-087] ; National Natural Science Foundation of China[92252203] ; National Natural Science Foundation of China[12102439] ; National Natural Science Foundation of China[12402396] ; China Postdoctoral Science Foundation[2021M703290] ; China Postdoctoral Science Foundation[2024M753318] ; Postdoctoral Fellowship Program (Grade C) of China Postdoctoral Science Foundation[GZC20241784]
WOS研究方向Engineering ; Oceanography
语种英语
WOS记录号WOS:001393343800001
资助机构NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics ; CAS Project for Young Scientists in Basic Research ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Postdoctoral Fellowship Program (Grade C) of China Postdoctoral Science Foundation
其他责任者Liu, Yi
源URL[http://dspace.imech.ac.cn/handle/311007/98113]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, 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		 Wang, Gang,Liu Y,Wang SZ,et al. Assessment of the Reynolds-stress model-based hybrid RANS/LES method for junction flow around a fully appended underwater vehicle[J]. OCEAN ENGINEERING,2025,318:14.
APA Wang, Gang,刘毅,王士召,&何国威.(2025).Assessment of the Reynolds-stress model-based hybrid RANS/LES method for junction flow around a fully appended underwater vehicle.OCEAN ENGINEERING,318,14.
MLA Wang, Gang,et al."Assessment of the Reynolds-stress model-based hybrid RANS/LES method for junction flow around a fully appended underwater vehicle".OCEAN ENGINEERING 318(2025):14.

入库方式： OAI收割

来源：力学研究所

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