Analysis of Transient Behaviour in a Porous Medium Filled Square Cavity Using COMSOL

Abstract

This study investigates the transient behavior of free convection within 
a square cavity filled with a porous medium, utilizing the COMSOL 
Multiphysics software. The dimensionless equations for continuity, 
Darcy, and energy were solved by producing streamlines and isotherms. 
The analysis was conducted using Rayleigh numbers (Ra). The focus lies 
on examining how varying Rayleigh numbers influence heat transfer 
and fluid flow. The study solves by simulating a system where one 
vertical wall is heated, the opposite wall is cooled, and the horizontal 
walls are insulated. These findings underscore the efficacy of COMSOL 
in modeling complex thermal phenomena and contribute insights 
relevant to engineering applications, including cooling systems and 
thermal energy management.