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Linear instability analysis of Rayleigh-Bénard convection in a cylinder with traveling magnetic field
Wang, Bo-Fu; Ma, Dong-Jun; Guo, Zhi-Wei; Sun, De-Jun; 北京8701信箱
Department空间科学部
Source PublicationJournal of Crystal Growth
2014
Volume400Pages:49-53
ISSN0022-0248
Language英语
KeywordA1. Numerical Simulation A1. Fluid Flows A1. Convection
AbstractRayleigh-Bénard 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.
Indexed ByEI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2746
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
Wang, Bo-Fu,Ma, Dong-Jun,Guo, Zhi-Wei,et al. Linear instability analysis of Rayleigh-Bénard 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,&北京8701信箱.(2014).Linear instability analysis of Rayleigh-Bénard 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-Bénard convection in a cylinder with traveling magnetic field".Journal of Crystal Growth 400(2014):49-53.
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