Transient free convection flow over an isothemal vertical cylinder with temperature dependent viscosity

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 fin...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2008, 25(1), 112, pp.34-40
Main Authors: Rani, Hari Ponnamma, Kim, Chang Nyung
Format: Article
Language:English
Subjects:
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Industrial Chemistry/Chemical Engineering
Materials Science
Process Safety
Process Systems Engineering
Transport Phenomena
화학공학
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Summary: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.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-008-0006-5