THERMAL SCIENCE

International Scientific Journal

Mehdi Kiyasatfar

,

Nader Pourmahmoud

,

Maqsood Golzan

,

Iraj Mirzaee

INVESTIGATION OF THERMAL BEHAVIOR AND FLUID MOTION IN DC MAGNETOHYDRODYNAMIC PUMPS

ABSTRACT
Motivated by increasingly being used MHD micropumps for pumping biological and chemical specimens, this study presents a simplified MHD flow model based upon steady state, incompressible and fully developed laminar flow theory in rectangular channel to offer the characteristics of MHD pumps for prediction of pumping performance in MHD flow. The nonlinear governing equations of motion and energy including viscous and Joule dissipation are solved numerically for velocity and temperature distributions. To aim this goal a finite difference approximation based code is developed and utilized. In addition, the effects of magnetic flux density, applied electric current and channel size on flow velocity field as well as thermal behavior are investigated in various working medium with different physical properties. Also the entropy generation rate is discussed. The simulation results are in good agreement with experimental data from literature.
KEYWORDS
magnetohydrodynamic, MHD, micropump, Lorentz forces, entropy generation
PAPER SUBMITTED: 2011-08-26
PAPER REVISED: 2012-05-30
PAPER ACCEPTED: 2012-05-30
DOI REFERENCE: https://doi.org/10.2298/TSCI110826089K
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2014, VOLUME 18, ISSUE Supplement 2, PAGES [S551 - S562]
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Investigation of thermal behavior and fluid motion in DC magnetohydrodynamic pumps

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence