Proceedings of the
International Conference on Mechanical Engineering 2009
(ICME2009) 26- 28 December 2009, Dhaka, Bangladesh

ICME09-TH-09

NATURAL CONVECTION FLOW ALONG THE WAVY CONE IN
CASE OF UNIFORM SURFACE HEAT FLUX WHERE VISCOSITY
IS INVERSLY PROPORTIONAL TO TEMPERATURE

Azad Rahman1, Sharaban Thohura1, M.M.A. Sarker2, M. Mamun Molla3
1Department of Natural Science, Stamford University Bangladesh, Dhaka, Bangladesh
2Department of Mathematics, Bangladesh University of Engineering & Technology, Dhaka, Bangladesh
3Dept. of Mechanical & Manufacturing Engineering, University of Manitoba, Canada

ABSTRACT

The effect of temperature dependent viscosity μ(T), on steady two dimensional natural convection flow along a vertical wavy cone with uniform surface heat flux has been investigated. Viscosity is considered to be inversely proportional to temperature. Using the appropriate variables the basic equations are transformed to non-dimensional boundary layer equations and then solved numerically employing implicit finite difference method. The effects viscosity variation parameter on the velocity profile, temperature profile, velocity vector field, skin friction, average Nusselt number, streamlines and isotherm have been discussed. The results have been shown graphically by utilizing the visualizing software Techplot. The present numerical result shows excellent agreement with the published results when the effect of temperature dependent viscosity was passed over.

Keywords: Natural convection, wavy cone, viscosity variation parameter

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