Al-Qadisiyah Journal for Engineering Sciences

Double-Diffusive of Natural Convection in an Inclined Porous Square Domain Generalized Model

Document Type : Research Paper

Authors

Khaled Al-Farhany 1
A. Turan 2

1 Department of Mechanical Engineering, University of Al-Qadisiyah, Ad-Diwaniyah, 58001, Iraq

2 School of Mechanical, Aerospace and Civil Engineering, the University of Manchester, P.O. Box 88, Manchester M60 1QD, UK

https://doi.org/10.30772/qjes.v12i3.612
Abstract
Numerical investigate of double-diffusive natural convection in an inclined porous square. Two opposing walls of the square cavity are adiabatic; while the other walls are, kept at constant concentrations and temperatures. The Darcy–Forchheimer–Brinkman model is used to solve the governing equations with the Boussinesq approximation. A code written in FORTRAN language developed to solve the governing equations in dimensionless forms using a finite volume approach with a SIMPLER algorithm. The results presented in U-velocity and V-velocity, isotherms, iso-concentration, streamline, the average Nusselt number, and the average Sherwood number for different values of the dimensionless parameters. A wide range of these parameters have been used including; Darcy Number, modified Rayleigh number, Lewis number, buoyancy ratio, and inclination angle.  The results show that for opposite buoyancy ratio (N≤-1), the Nu decreases when the Le increases and the Sh increase when the Le increases. For an (N>0), the Nu increases when the Le increases until Le is equal to 1 and then it decreases, also Sh increases when the Le increases

Keywords

Inclined cavity
Porous medium
Double diffusion
Natural convection
Generalized model
Al-Qadisiyah Journal for Engineering Sciences
Volume 12, Issue 3
Summer 2019
Pages 151-160

  • Receive Date 21 June 2023

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