Staff Members - Benha University
Thermocapillarity Effect on MHD Flow for a Liquid Thin Film with Variable Fluid Properties Over an Unsteady Stretching Sheet
• 2016
Publication Information
Authors
Reda G. Abdel-Rahman and Abeer S. Elfeshawey
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publication.type
International
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Abstract
The influences of the thermocapillarity, thermal radiation and heat generation/absorption on an unsteady laminar flow of a MHD variable fluid proper ties thin liquid film over an unsteady
stretching surface are analyzed. Two cases are studied, namely
(i) the sheet with prescribed surface temperature (PST case ) and
(ii) the sheet with prescribed wall heat flux (PHF case). The
reduced system of ordinary differential equations with the boundary conditions is solved numerically using the fourth order
Runge-Kutta algorithm scheme with the shooting technique. The effects of various parameters on the local skin-friction coefficient, the local Nusselt and the dimensionless film thickness are given in
graphics form and discussed. The results show that the local skin-friction coefficient increases with increasing the magnetic, variable viscosity, heat generation parameters for two PST and PHF cases.
stretching surface are analyzed. Two cases are studied, namely
(i) the sheet with prescribed surface temperature (PST case ) and
(ii) the sheet with prescribed wall heat flux (PHF case). The
reduced system of ordinary differential equations with the boundary conditions is solved numerically using the fourth order
Runge-Kutta algorithm scheme with the shooting technique. The effects of various parameters on the local skin-friction coefficient, the local Nusselt and the dimensionless film thickness are given in
graphics form and discussed. The results show that the local skin-friction coefficient increases with increasing the magnetic, variable viscosity, heat generation parameters for two PST and PHF cases.