Mixed Convection in a Lid-Driven Horizontal Cavity in the Presence of Internal Heat Generation or Absorption

Norhaliza Abu Bakar; Rozaini Roslan

Authors

Norhaliza Abu Bakar Department of Science and Mathematics, Centre of Diploma Studies, Universiti Tun Hussein Onn Malaysia, Johor, Pagoh, 84600, Malaysia
Rozaini Roslan Centre for Research in Computational Mathematics, Faculty of Sciences and Applied Technology, Universiti Tun Hussein Onn Malaysia, Johor, Pagoh, 84600, Malaysia

Keywords:

Finite volume method, heat absorption, heat generation, horizontal cavity, lid-driven

Abstract

This research aims to analyze numerically the effect of internal heat generation or absorption in a two-dimensional (2D) horizontal cavity to the fluid flow and heat transfer process. The vertical walls are well insulated. Meanwhile, the top and bottom walls are kept at T_ℎ and T_c respectively, where T_ℎ > T_c. The top wall is moving at a constant speed from left to right. The finite volume method and SIMPLE are employed to discretized the governing equations. Next, the algebraic equations are solved iteratively using the tri-diagonal matrix algorithm (TDMA). The influences of heat generation or absorption parameters are investigated in terms of the flow, heat transfer, and Nusselt number. The numerical results are plotted in the form if streamlines and isotherms. It is found that the presence of heat generation or absorption have a significant effect on the fluid flow and heat transfer process in the horizontal cavity