Near continuum flows over a sphere

doi:10.1016/j.compfluid.2015.01.004

	Near continuum flows over a sphere
	Cai CP; Sun QH(孙泉华); Cai, CP (reprint author), New Mexico State Univ, Dept Mech & Aerosp Engn, Jett Hall 110,MSC 3450, Las Cruces, NM 88003 USA.
发表期刊	COMPUTERS & FLUIDS
	2015-04-16
卷号	111 页码:62-68
ISSN	0045-7930
摘要	In this paper, the problem of near continuum gas flows over a sphere is investigated numerically. Three types of boundary conditions for the sphere surface are adopted: (1) non-slip and constant temperature surface; (2) velocity slip with considerations of velocity gradient, and temperature jump at the surface; and (3) velocity slip with considerations of both velocity and temperature gradients, as well as temperature jump at the surface. Navier-Stokes equations in a cylindrical coordinate system for compressible flows are adopted with the Roe numerical scheme. The numerical simulation results include coefficient distributions for surface pressure, friction, heat flux, velocity slip, temperature jump and total drag. The results are obtained with different free stream Knudsen and Mach numbers. Several conclusions include: (i) the third surface boundary condition does not create significant differences from the second type, (ii) however, an adoption of non-slip or a slip surface boundary condition can create significant differences in Cf Cq and CD. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Flow Computation Navier-stokes Equations Slip Flows
学科领域	Computer Science, Interdisciplinary Applications ; Mechanics
DOI	10.1016/j.compfluid.2015.01.004
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000352051000005
WOS研究方向	Computer Science ; Mechanics
WOS类目	Computer Science, Interdisciplinary Applications ; Mechanics
课题组名称	LHD微尺度和非平衡流动
论文分区	二类/Q2
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49913
专题	高温气体动力学国家重点实验室
通讯作者	Cai, CP (reprint author), New Mexico State Univ, Dept Mech & Aerosp Engn, Jett Hall 110,MSC 3450, Las Cruces, NM 88003 USA.
推荐引用方式 GB/T 7714	Cai CP,Sun QH,Cai, CP . Near continuum flows over a sphere[J]. COMPUTERS & FLUIDS,2015,111:62-68.
APA	Cai CP,孙泉华,&Cai, CP .(2015).Near continuum flows over a sphere.COMPUTERS & FLUIDS,111,62-68.
MLA	Cai CP,et al."Near continuum flows over a sphere".COMPUTERS & FLUIDS 111(2015):62-68.

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