Analysis of the magnetic field effect on entropy generation at thermosolutal convection in a square cavity
type: Item
instance of: scholarly article
title: Analysis of the magnetic field effect on entropy generation at thermosolutal convection in a square cavity
zbMATH Open document ID: 1426.76670
author: Mounir Bouabid
author: Nejib Hidouri
author: Mourad Magherbi
author: Ammar Ben Brahim
published in: Entropy
publication date: 2014-08-26T00:00:00Z
review text: Summary: Thermosolutal convection in a square cavity filled with air and submitted to an inclined magnetic field is investigated numerically. The cavity is heated and cooled along the active walls with a mass gradient whereas the two other walls of the cavity are adiabatic and insulated. Entropy generation due to heat and mass transfer, fluid friction and magnetic effect has been determined in transient state for laminar flow by solving numerically the continuity, momentum energy and mass balance equations, using a Control Volume Finite-Element Method. The structure of the studied flows depends on four dimensionless parameters which are the Grashof number, the buoyancy ratio, the Hartman number and the inclination angle. The results show that the magnetic field parameter has a retarding effect on the flow in the cavity and this lead to a decrease of entropy generation, Temperature and concentration decrease with increasing value of the magnetic field~parameter.
Mathematics Subject Classification ID: 76R10
Mathematics Subject Classification ID: 76W05
Mathematics Subject Classification ID: 76M10
Mathematics Subject Classification ID: 80A17
Mathematics Subject Classification ID: 80A20
zbMATH DE Number: 6334238
zbMATH Keywords: double diffusive convection
zbMATH Keywords: square cavity
zbMATH Keywords: entropy generation
zbMATH Keywords: magnetic effect
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.3390/e13051034
OpenAlex ID: W2149414373
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DOI: 10.3390/E13051034
description: scientific article; zbMATH DE number 6334238