The effect of variable viscosity on mixed convection boundary layer flow over a cylinder with Newtonian heating
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Date
2016
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
University of Dar es Salaam
Abstract
The study aimed at investigating the effect of variable viscosity on mixed convection boundary layer flow over a cylinder with Newtonian heating. Using the similarity transformation variable, the governing partial differential equations of motion are transformed into non linear ordinary differential equations. The governing equations of motion solved numerically using fourth order Runge-Kutta method as well as shooting technique which is found to give a better approximation and gives solution for the guess values. After analysis governing parameters like Prandtl number Pr, mixed convection parameter and viscosity parameter ε obtained. Scaled stream-wise velocity and temperature distributions, skin friction coefficient and the heat transfer coefficient are presented and discussed. The results show that, there is a significant effect of the obtained parameters on the fluid flow. It is evident that as viscosity increases, temperature distribution decreases.
Description
Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class mark (THS EAF QC189.C45M32)
Keywords
Viscosity, Heat, Convection, Mathematical models
Citation
Madasi, J. D. (2016) The effect of variable viscosity on mixed convection boundary layer flow over a cylinder with Newtonian heating, Master dissertation, University of Dar es Salaam, Dar es Salaam