Influence of Joule Heating and Viscous Dissipation on MHD Flow and Heat Transfer of Viscous Fluid in Converging/Diverging Stretchable Channels

2017 ◽  
Vol 6 (2) ◽  
pp. 254-263 ◽  
Author(s):  
Umar Khan ◽  
. Adnan ◽  
Mir Asadullah ◽  
Naveed Ahmed ◽  
Syed Tauseef Mohyud-Din
Keyword(s):  
Heat Transfer ◽  
Viscous Fluid ◽  
Viscous Dissipation ◽  
Joule Heating ◽  
Mhd Flow ◽  
Flow And Heat Transfer

Combined Effects of Joule Heating and Viscous Dissipation on Magnetohydrodynamic Flow Past a Permeable, Stretching Surface With Free Convection and Radiative Heat Transfer

2010 ◽  
Vol 132 (6) ◽  
Author(s):  
Chien-Hsin Chen
Keyword(s):  
Heat Transfer ◽  
Free Convection ◽  
Viscous Dissipation ◽  
Joule Heating ◽  
Radiative Heat ◽  
Mhd Flow ◽  
Eckert Number ◽  
Combined Effects ◽  
Stretching Surface ◽  
Flow And Heat Transfer

The combined effects of Joule heating and viscous dissipation on the momentum and thermal transport are studied for the Magnetohydrodynamic (MHD) flow over a stretching sheet. Effects of free convection, thermal radiation, and surface suction/blowing on the flow and heat transfer characteristics are also examined. Results demonstrate that the reduction in heat transfer due to Joule and viscous heating is more pronounced at a higher Prandtl number. The Eckert number changes appreciably the velocity profile as the buoyancy effect becomes significant, while the Eckert number has an unimpressive effect on the velocity when the free convection is week. Increasing the radiation parameter will increase the temperature profile noticeably, and thus reduce the heat transfer rate accordingly. The heat transfer is enhanced markedly by imposing surface fluid suction, while the opposite trend is observed for blowing.

scholarly journals Scrutinization of Joule Heating and Viscous Dissipation on MHD Flow and Melting Heat Transfer Over a Stretching Sheet

2018 ◽  
Vol 23 (2) ◽  
pp. 429-433 ◽  
Author(s):  
K.G. Kumar ◽  
B.J. Gireesha ◽  
S. Manjunatha
Keyword(s):  
Heat Transfer ◽  
Viscous Dissipation ◽  
Joule Heating ◽  
Mhd Flow ◽  
Melting Heat ◽  
Flow And Heat Transfer ◽  
Melting Heat Transfer ◽  
Mhd Boundary Layer ◽  
Layer Flow ◽  
Mhd Boundary Layer Flow

Abstract The present paper deals with an analysis of the combined effect of Joule heating and viscous dissipation on an MHD boundary layer flow and melting heat transfer of a micro polar fluid over a stretching surface. Governing equations of the problem are transformed into a set of coupled nonlinear ordinary differential equations by applying proper transformations and then they are solved numerically using the RKF-45 method. The method is verified by a comparison with the established results with limiting solution. The influence of the various interesting parameters on the flow and heat transfer is analyzed in detail through plotted graphs.

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