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Linear instability analysis of Rayleigh-Benard convection in a cylinder with traveling magnetic field
Wang, Bo-Fu; Ma, Dong-Jun; Guo, Zhi-Wei; Sun, De-Jun; Guo, ZW (reprint author), Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Hubei, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF CRYSTAL GROWTH
2014
Volume400Pages:49-53
ISSN0022-0248
Language英语
KeywordNumerical Simulation Fluid Flows Convection
AbstractRayleigh-Benard convection under a low frequency traveling magnetic field (TMF) in a vertical cylinder is investigated by linear stability analysis. The cylinder with a adiabatic vertical wall is heated from below and cooled from above. The effects of traveling magnetic field on flow instability are studied for four aspect ratios (height/radius) A= 1, 2, 3, 4 and three Prandtl numbers Pr=0.001, 0.02, 0.1. The critical Rayleigh number and corresponding critical frequency are evaluated as a function of TMF force Ft, and diversity profiles of stability curves are obtained under different control parameters. Moreover, stability properties for different Prandtl numbers are compared at fixed aspect ratios. The results obtained show that the magnetic force is able to either stabilize or destabilize the flow, which is determined by the effects of combination of the strength of the force, the aspect ratio and the Prandtl number. (C) 2014 Elsevier B.V. All rights reserved.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4480
Collection空间科学部
Corresponding AuthorGuo, ZW (reprint author), Wuhan Univ, Sch Water Resources & Hydropower Engn, Wuhan 430072, Hubei, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Bo-Fu,Ma, Dong-Jun,Guo, Zhi-Wei,et al. Linear instability analysis of Rayleigh-Benard convection in a cylinder with traveling magnetic field[J]. JOURNAL OF CRYSTAL GROWTH,2014,400:49-53.
APA Wang, Bo-Fu,Ma, Dong-Jun,Guo, Zhi-Wei,Sun, De-Jun,&Guo, ZW .(2014).Linear instability analysis of Rayleigh-Benard convection in a cylinder with traveling magnetic field.JOURNAL OF CRYSTAL GROWTH,400,49-53.
MLA Wang, Bo-Fu,et al."Linear instability analysis of Rayleigh-Benard convection in a cylinder with traveling magnetic field".JOURNAL OF CRYSTAL GROWTH 400(2014):49-53.
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