THERMAL SCIENCE

International Scientific Journal

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
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]
REFERENCES
  1. Lemoff A., Lee A, Miles R, McConaghy C, 1999, An, AC Magnetohydrodynamic Micropump". Towards a True Integrated Microfluidic System, Int. Conf. on Solid-State Sensors and Actuators, Transducers, 99 (1999), pp. 1126-1129
  2. Lemoff A, Lee A, An AC Magnetohydrodynamic Micropump, Sens Actuators, 63 (2000), pp. 178-185
  3. Jang, J., Lee, S.S., Theoretical and experimental study of MHD micro-pump, Sens. Actuators, 80 (2000), pp. 84-89
  4. Lemoff A, Lee A, An ac magnetohydrodynamic microfluidic switch for micro total analysis systems, Biomed Microdevices, 5 (2003), pp. 155-160
  5. Wang, P.-J. et al., Simulation of two-dimensional fully developed laminar flow for a magneto- hydrodynamic (MHD) pump, Biosensors and Bioelectronics, 20 (2004), pp. 115-121
  6. Homsy, et al, A high current density DC magneto-hydrodynamic (MHD) micro-pump, The Royal Society of Chemistry, Lab Chip, 5 (2005), pp. 466-471
  7. Duwairi, H. M. and Abdullah, M., Thermal and Flow Analysis of a Magneto-hydrodynamic Micro-pump, Micro-system Technologies, 13 (2007), pp. 33-39
  8. Ho, J.E., Characteristic study of MHD pump with channel in rectangular ducts, Journal of Marine Science and Technology, 15 (2007), 4, pp. 315-321
  9. Bejan A., Second law analysis in heat transfer, Energy, The Int. J, 5 (1980), pp. 721-723
  10. Bejan A., Entropy generation minimization, CRC Press, Boca Raton, Florida, 1996
  11. Salas H, et al., Entropy generation analysis of magnetohydrodynamic induction devices, J Phys D Appl Phys, 32 (1990), pp. 2605-2608
  12. Haddad O, Abuzaid M, Al-Nimr M., Entropy generation due to laminar incompressible forced convection flow through parallel-plates microchannel, Entropy, 6 (2004), pp.413-426
  13. Naterer GF., Microfluidic friction and thermal energy exchange in a nonpolarized electromagnetic field, Int J Energy Res, 31 (2007), pp. 728-741
  14. Aricoglu, Aytac., Ozkol, Ibrahim., Komurgoz, Guven., Effect of slip on entropy generation in a single rotating disk in MHD flow, Applied Energy, 85 (2008), pp. 1225-1239
  15. Kiyasatfar, M., et al, Effect of magnetic flux density and applied current on temperature, velocity and entropy generation distributions in MHD pumps, Sensors & Transducers Journal, 124 (2011), 72-82

© 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