Onset of double-diffusive Rayleigh-Bénard convection of a moderate Prandtl number binary mixture in cylindrical enclosures

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• 作者：Li Zhang^a ; ^b ; You-Rong Li^a ; ^{liyourong@cqu.edu.cn} ; Huan Zhang^a
• 关键词：Double-diffusive Rayleigh-Bé ; nard convection ; Cylindrical enclosure ; Buoyancy ratio ; Critical Rayleigh number ; Primary bifurcation pattern
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：107
• 期：Complete
• 页码：500-509
• 全文大小：4764 K
• 卷排序：107

文摘

Double-diffusive Rayleigh-Bénard flow in the cylindrical enclosures is simulated. At N > 0, solutal gradient has an accelerative influence to flow destabilization. The critical Rayleigh number decreases with the increase of the buoyancy ratio. Flow pattern at the primary threshold depends on aspect ratio and buoyancy ratio.