Variable Viscosity and Prandtl Number Effects on Natural Convection Ethanol Boundary Layers about a Vertical Plate
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 7
Abstract
The aim of this paper is to study the effect of variable viscosity and Prandtl number on the steady, laminar flow (of ethanol) past a vertical porous flat plate. Both viscosity and Prandtl number have been assumed to vary as inverse linear function of temperature. An implicit finite difference method along with the quasilinearization technique has been employed to solve the coupled, parabolic partial differential equations governing the self-similar flow. It is found that variable viscosity and Prandtl number has a key role on the skin friction and heat transfer parameters as well as velocity and temperature fields. Further, it is observed that the effect of variable fluid properties plays a significant role in the control of laminar boundary layer. The present study confirms the fact that when the working fluid is sensitive to the temperature, the influence of variable viscosity and Prandtl number has to be taken into the account in order to visualize the skin friction and heat transfer rate, accurately. Index Terms- Skin friction, Heat transfer, Temperature-dependent Viscosity, Velocity, Temperature. MSC 2010 Codes – 76M20, 76N20, 76R10
Authors and Affiliations
Venkataseshaiah . B, A. T. Eswara
Keywords
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