TITLE:
Modeling of Coupled Heat and Mass Transfer in a Trapezoidal Porous Bed on a Grid
AUTHORS:
Kokou N’Wuitcha, Gagnon Koffi Apedanou, Yendoubé Lare, Kossi Napo
KEYWORDS:
Heat and Mass Transfer, Isosceles Trapezoidal Cavity, Porous Medium, Finite Volume Method, SIMPLE Algorithm
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.13 No.1,
February
15,
2023
ABSTRACT: We investigate heat and mass transfer in an isosceles trapezoidal cavity, filled with charcoal considered as a granular porous medium. The Darcy-Brinkman-Forchheimer flow model is coupled to the energy and mass equations with the assumption of non-thermal equilibrium. These equations are discretized by the finite volume method with an offset mesh and then solved by the line-by-line method of Thomas. The coupling between pressure and velocity is obtained by Semi-Implicit Method for Pressure Linked Equations (SIMPLE) algorithm. The results show that the temperature in the cavity increases when the inclination angle of the sides walls decreases. The 15° inclination is selected as being able to offer better thermal performance in the cookstove combustion chamber.