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Issue
Korean Journal of Chemical Engineering,
Vol.25, No.1, 34-40, 2008
Transient free convection flow over an isothemal vertical cylinder with temperature dependent viscosity
Rani HP, Kim CN
A numerical analysis is performed to study the influence of temperature-dependent viscosity and Prandtl number on unsteady laminar free convection flow over a vertical cylinder. The governing boundary layer equations are converted into a non-dimensional form and a Crank-Nicolson type of implicit finite-difference method is used to solve the governing non-linear set of equations. Numerical results are obtained and presented for different viscosityvariation parameters and Prandtl numbers. Transient effects of velocity and temperature are analyzed. The heat transfer characteristics against the viscosity-variation parameter are analyzed with the help of average skin-friction and Nusselt number and are shown graphically.
Keywords: Transient; Natural Convection; Vertical Cylinder; Variable Viscosity; Finite Difference Method
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