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

doi:10.1016/j.oceaneng.2024.120073

IMECH-IR > 非线性力学国家重点实验室

	Assessment of the Reynolds-stress model-based hybrid RANS/LES method for junction flow around a fully appended underwater vehicle
	Wang, Gang1,2 ; Liu Y(刘毅)1,2; Wang SZ(王士召)1,2 ; He GW(何国威)1,2
通讯作者	Liu, Yi([email protected])
发表期刊	OCEAN ENGINEERING
	2025-02-15
卷号	318 页码:14
ISSN	0029-8018
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.
关键词	Underwater vehicle Junction flow Horseshoe vortex Hybrid RANS/LES method Reynolds-stress model
DOI	10.1016/j.oceaneng.2024.120073
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001393343800001
关键词[WOS]	LARGE-EDDY SIMULATION ; AXISYMMETRICAL BODY ; TURBULENCE MODELS ; LES ; SUBMARINE ; DYNAMICS ; VORTEX ; WAKE ; DES
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
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]
项目资助者	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
论文分区	一类
力学所作者排名	1
RpAuthor	Liu, Yi
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/98114
专题	非线性力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, 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.Rp_Au:Liu, Yi
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.