| 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.
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| Source Publication | COMPUTERS & FLUIDS
(IF:2.223[JCR-2018],2.587[5-Year]) |
| 2015-04-16
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| Volume | 111Pages:62-68 |
| ISSN | 0045-7930
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| Abstract | 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. |
| Keyword | Flow Computation
Navier-stokes Equations
Slip Flows
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| Subject Area | Computer Science, Interdisciplinary Applications
; Mechanics
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| DOI | 10.1016/j.compfluid.2015.01.004
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| URL | 查看原文
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| Indexed By | SCI
; EI
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| Language | 英语
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| WOS ID | WOS:000352051000005
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| WOS Research Area | Computer Science
; Mechanics
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| WOS Subject | Computer Science, Interdisciplinary Applications
; Mechanics
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| Department | LHD微尺度和非平衡流动
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| Classification | 二类/Q2
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| Citation statistics |
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| Document Type | 期刊论文
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| Identifier | http://dspace.imech.ac.cn/handle/311007/49913
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| Collection | 高温气体动力学国家重点实验室
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| Corresponding Author | Cai, CP (reprint author), New Mexico State Univ, Dept Mech & Aerosp Engn, Jett Hall 110,MSC 3450, Las Cruces, NM 88003 USA. |
Recommended Citation
GB/T 7714 |
Cai CP,Sun QH,Cai, CP . Near continuum flows over a sphere[J]. COMPUTERS & FLUIDS,2015,111:62-68.
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| APA |
Cai CP,孙泉华,&Cai, CP .(2015).Near continuum flows over a sphere.COMPUTERS & FLUIDS,111,62-68.
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| MLA |
Cai CP,et al."Near continuum flows over a sphere".COMPUTERS & FLUIDS 111(2015):62-68.
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