Numerical Investigation of Laminar Mixed Convection in a Cubic Cavity by MRT-LBM: Effects of the Sliding Direction

S. M. Seyyedi Department of Mechanical Engineering, Babol University of Technology, Babol, I. R., Iran

Soheil Soleimani Department of Mechanical Engineering, Babol University of Technology, Babol, I. R., IranCorrespondence[email protected]

E. Ghasemi Department of Mechanical Engineering, University of Idaho, Idaho Falls, Idaho, USA

D. D. Ganji Department of Mechanical Engineering, Babol University of Technology, Babol, I. R., Iran

M. Gorji-Bandpy Department of Mechanical Engineering, Babol University of Technology, Babol, I. R., Iran

H. Bararnia Department of Mechanical Engineering, Babol University of Technology, Babol, I. R., Iran

Abstract

Laminar mixed convection in a cubic cavity is studied numerically using the multi-relaxation-time (MRT) lattice Boltzmann method (LBM). The sidewalls of the cavity are thermally adiabatic, while the fixed bottom and top moving walls are maintained at uniform temperatures. Simulations are performed for various values of Richardson number (Ri), sliding angle (θ), and Reynolds number (Re). It is revealed that the Nusselt number increases for different values of Reynolds number as the moving lid angle enhances. In addition, the distribution of the local Nusselt number on the bottom wall follows the direction of the moving lid.

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Numerical Investigation of Laminar Mixed Convection in a Cubic Cavity by MRT-LBM: Effects of the Sliding Direction

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Numerical Investigation of Laminar Mixed Convection in a Cubic Cavity by MRT-LBM: Effects of the Sliding Direction

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