Numerical simulation of three-dimensional double diffusive convection in a lid-driven cavity

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• 作者：Kaouther Ghachem^b ; Lioua Kolsi^a ; ^b ; ^{lioua_enim@yahoo.fr" class="auth_mail" title="E-mail the corresponding author} ; Chemseddine Maatki^b ; Abdulaziz Alghamdi^a ; Hakan F. Oztop^c ; Mohamed Naceur Borjini^b ; Habib Ben Aissia^b ; Khaled Al-Salem^d
• 关键词：Double-diffusive convection ; Fluid flow ; Three dimensional ; Lid-driven
• 刊名：International Journal of Thermal Sciences
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：110
• 期：Complete
• 页码：241-250
• 全文大小：3205 K

文摘

In this work, the heat and mass transfers in 3D lid driven cavity is analyzed. Double-diffusive convective flow in a cubic enclosure with moving left side in −y (Case I) or +y (Case II) directions is studied numerically. The cavity is heated from left side and cooled from right and constant different concentration is imposed, while remaining surfaces are adiabatic.

The FVM based on the 3D vector-potential – vorticity formalism is used as numerical method. Prandtl number and Lewis number are fixed at 10, 0.7 and 2, respectively. The study covers a wide range for Richardson number 0.1 ≤ m>Rim> ≤ 10 and Buoyancy ratio −10 ≤ m>Rim> ≤ 10. Results are presented by particle trajectories, isotherms, Iso-concentration and local and mean Nusselt and Sherwood numbers.