Hypersonic flow and heat transfer of a micro-rough plate in the near-continuum regime

doi:10.1063/5.0170266

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

	Hypersonic flow and heat transfer of a micro-rough plate in the near-continuum regime
	Guo, Jinghui 1; Wang XY(王小永)2; Li, Sijia 1; Lin, Guiping 1
刊名	PHYSICS OF FLUIDS
	2023-10-01
卷号	35 期号:10 页码:21
ISSN号	1070-6631
DOI	10.1063/5.0170266
通讯作者	Wang, Xiaoyong(wangxy@imech.ac.cn)
英文摘要	Hypersonic near-continuum flow over a flat plate with micro-scale roughness is studied using the kinetic direct simulation Monte Carlo method on roughness module configurations with different relative roughness (h) values and roughness densities (R-N) under a matrix of freestream parameters (Mach number Ma(infinity), Reynolds number Re-infinity, temperature T-infinity, and Knudsen number Kn(infinity)). An open-source Stochastic PArallel Rarefied-gas Time-accurate Analyzer code, which enables Cartesian grid adaption and efficient parallelization, is utilized for the rough-plate flow simulations. Flowfield analysis reveals that the local patterns inside the roughness modules evolve starting from closed (two vortices) via transitional ultimately to open (one vortex) by an increase in h, with co-existing shrinkage of high-density zones and attenuation of density peaks. The surface quantities are significantly influenced by the flowfield characteristics, and a local association between the peak heat flux and the peak pressure is identified. Non-dimensional peak heating and pressure correlation laws for the local peak heat flux and pressure coefficients in terms of two length-scale transformations are proposed, enabling the capture of local heating and pressure extrema on rough plates with varying h and R-N conditions under different Ma(infinity), Re-infinity, and T-infinity parameter values. The peak heat flux and pressure coefficients can be described by analogous correlating equations expressed by first-order-polynomial or power functions. An increase in the rarefaction degree (Kn(infinity)) deviating from the near-continuum regime causes the correlation laws to fail.
分类号	一类/力学重要期刊
资助项目	National Natural Science Foundation of China[12102025] ; National Natural Science Foundation of China[12002348] ; National Natural Science Foundation of China[030810-ZG216S2312]
WOS关键词	BOUNDARY-LAYER ; TRANSITION EXPERIMENTS ; DISTRIBUTED ROUGHNESS ; NUMERICAL-SIMULATION ; SEPARATED FLOWS ; CAVITY ; AUGMENTATION
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:001169985200006
资助机构	National Natural Science Foundation of China
其他责任者	Wang, Xiaoyong
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94607]
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.Beihang Univ, Sch Aeronaut Sci & Engn, Beijing 100191, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Guo, Jinghui,Wang XY,Li, Sijia,et al. Hypersonic flow and heat transfer of a micro-rough plate in the near-continuum regime[J]. PHYSICS OF FLUIDS,2023,35(10):21.
APA	Guo, Jinghui,王小永,Li, Sijia,&Lin, Guiping.(2023).Hypersonic flow and heat transfer of a micro-rough plate in the near-continuum regime.PHYSICS OF FLUIDS,35(10),21.
MLA	Guo, Jinghui,et al."Hypersonic flow and heat transfer of a micro-rough plate in the near-continuum regime".PHYSICS OF FLUIDS 35.10(2023):21.