Large eddy simulation of shock wave/turbulent boundary layer interaction under incipient and fully separated conditions

doi:10.1063/5.0147829

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Large eddy simulation of shock wave/turbulent boundary layer interaction under incipient and fully separated conditions
	Ji XX(纪相鑫); Li XL(李新亮); Tong FL(童福林); Yu ZP(于长平)
刊名	PHYSICS OF FLUIDS ; 4
	2023-04
卷号	35 页码:46106
ISSN号	1070-6631
DOI	10.1063/5.0147829
英文摘要	Large eddy simulations of shock wave/turbulent boundary layer interaction on a compression ramp at the Mach number M a infinity = 5 and Reynolds number R e infinity = 14 000 are performed to investigate the impact of the incipient and fully separated conditions on the development of the flow field. The quasi-dynamic subgrid-scale kinetic energy equation model, which combines the benefits of the gradient model with the eddy-viscosity model, has been applied. Compared with the previous experimental and numerical results, the simulation was validated. The flow structures, turbulence properties, vortex structures, and low-frequency unsteadiness are all investigated. The flow field of the incipient separation is attached and rarely impacted by shock. An evident separation bubble and localized high wall temperatures in fully separated flow are caused by the separation shock's significant reverse pressure gradient. The Reynolds stress components exhibit significant amplification in both cases, and the peak outward shifts from the near-wall region to the center of the free shear layer. Turbulent kinetic energy terms were analyzed, and the two scenarios show a significant difference. The power spectral density of the wall pressure fluctuations shows that the low-frequency motion of the incipient separation is not apparent relative to the fully separated flow.
分类号	一类/力学重要期刊
WOS研究方向	WOS:000964992400010
语种	英语
资助机构	National Key Research and Development Program of China [2019YFA0405300] ; NSFC [12232018, 12072349, 12202457]
其他责任者	Yu, CP
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/92263]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.(Tong Fulin) State Key Lab Aerodynam Mianyang 621000 Peoples R China 2.(Ji Xiangxin, Li Xinliang) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 3.(Ji Xiangxin, Li Xinliang, Yu Changping) Chinese Acad Sci Inst Mech LHD Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Ji XX,Li XL,Tong FL,et al. Large eddy simulation of shock wave/turbulent boundary layer interaction under incipient and fully separated conditions[J]. PHYSICS OF FLUIDS, 4,2023,35:46106.
APA	纪相鑫,李新亮,童福林,&于长平.(2023).Large eddy simulation of shock wave/turbulent boundary layer interaction under incipient and fully separated conditions.PHYSICS OF FLUIDS,35,46106.
MLA	纪相鑫,et al."Large eddy simulation of shock wave/turbulent boundary layer interaction under incipient and fully separated conditions".PHYSICS OF FLUIDS 35(2023):46106.