Open AccessMagnetohydrodynamics Mixed Convection Effects on the open enclosure in a horizontal channel Heated Partially from the Bottom
Author(s) -
Khaled AlFarhany,
Mohammed Azeez Alomari,
Ahmed Essa Faisal
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/870/1/012174
Subject(s) - prandtl number , hartmann number , mechanics , enclosure , multiphysics , laminar flow , magnetohydrodynamics , richardson number , reynolds number , combined forced and natural convection , heat transfer , constant (computer programming) , physics , convection , flow (mathematics) , thermodynamics , materials science , natural convection , magnetic field , nusselt number , buoyancy , engineering , turbulence , electrical engineering , finite element method , computer science , quantum mechanics , programming language
This paper presents a numerical simulation of MHD effects on laminar fluid flow throws a two-dimensional channel with an open cavity heated partially from the bottom with a constant length for the heated wall. A constant speed fluid flow (air) inters the horizontal channel at constant cold temperature and all the walls assumed to be insulated accept the heated wall at the bottom of the open cavity. In this study, COMSOL Multiphysics® Modelling Software (5.5) have been selected to solve the governing equations The results are carried out with a verity range of Richardson number and Hartmann number, while the Reynolds number and Prandtl number are kept constants (Re= 100, and Pr=0.707). The result shows that the heat transfer increases with increasing of the Richardson number, while it decreases with the increase of the magnetic field effects.