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Effect of Magnetic Field on Entropy Generation Due to Laminar Forced Convection Past a Horizontal Flat Plate
Mechanical Engineering Department, Faculty of Engineering Technology Al-Balqa Applied University, P.O. Box 340558 Amman 11134 Jordan
Mechanical Engineering Department, Al-Husn University College Al-Balqa Applied University, Irbid-Jordan
Mechanical Engineering Department, Jordan University of Science and Technology, Irbid-Jordan
* Author to whom correspondence should be addressed.
Received: 9 February 2004; Accepted: 5 June 2004 / Published: 5 June 2004
Abstract: Magnetic field effect on local entropy generation due to steady two-dimensional laminar forced convection flow past a horizontal plate was numerically investigated. This study was focused on the entropy generation characteristics and its dependency on various dimensionless parameters. The effect of various dimensionless parameters, such as Hartmann number (Ha), Eckert number (Ec), Prandtl number (Pr), Joule heating parameter (R) and the free stream temperature parameter (θ∞) on the entropy generation characteristics is analyzed. The dimensionless governing equations in Cartesian coordinate were solved by an implicit finite difference technique. The solutions were carried out for Ha2=0.5-3, Ec=0.01-0.05, Pr=1-5 and θ∞=1.1-2.5. It was found that, the entropy generation increased with increasing Ha, Ec and R. While, increasing the free stream temperature parameter, and Prandtl number tend to decrease the local entropy generation.
Keywords: Forced convection; Magnetic field; Joule heating; Entropy generation
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Al-Odat, M.Q.; Damseh, R.A.; Al-Nimr, M.A. Effect of Magnetic Field on Entropy Generation Due to Laminar Forced Convection Past a Horizontal Flat Plate. Entropy 2004, 6, 293-303.
Al-Odat MQ, Damseh RA, Al-Nimr MA. Effect of Magnetic Field on Entropy Generation Due to Laminar Forced Convection Past a Horizontal Flat Plate. Entropy. 2004; 6(3):293-303.
Al-Odat, Mohammed Q.; Damseh, Renhe A.; Al-Nimr, Moh\'d A. 2004. "Effect of Magnetic Field on Entropy Generation Due to Laminar Forced Convection Past a Horizontal Flat Plate." Entropy 6, no. 3: 293-303.