A Multiple-Relaxation-Time lattice Boltzmann analysis of coupled mixed convection and radiation effect in a tilted two-sided lid-driven enclosure

被引：8
|
作者：
Dahani, Youssef [1 ]
Hasnaoui, Mohammed [1 ]
Amahmid, Abdelkhalek [1 ]
Hasnaoui, Safae [1 ]
机构：
[1] Cadi Ayyad Univ, Fac Sci Semlalia, Dept Phys, Unit CNRST URL CNRTST 16,Lab Fluid Mech & Energet, BP 2390, Marrakech, Morocco
来源：
CHEMICAL PHYSICS LETTERS | 2022年 / 791卷
关键词：
Mixed convection; Double lid -driven; Inclined square cavity; Surface radiation; Multiple-relaxation-time; TURBULENT NATURAL-CONVECTION; HEAT-TRANSFER; SURFACE RADIATION; CAVITY; FLOW; SQUARE; NANOFLUID; FLUID; AIR; INCLINATION;
D O I：
10.1016/j.cplett.2022.139386
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A 2D Multiple-Relaxation-Time (MRT) lattice Boltzmann (LB) is used to simulate the coupled mixed convection and surface radiation in a square double lid-driven cavity. The parameters governing the problem are the inclination angle (0 < gamma < 180), the emissivity of the walls (0 (<=) epsilon (<=) 1), the Reynolds number (Re = 100), the Richardson number (0.01 (<=) Ri (<=) 100) and the Grashof number (10(2) (<=) Gr (<=) 106). The results obtained show significant effects of the Richardson number on the overall structure of the flow and heat transfer characteristics. The radiation effect on the behavior of the fluid within the cavity and the total Nusselt number is considerable, particularly at high values of Richardson number.
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页数：16
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