TRANSIENT ANALYSIS OF COMBINED FORCED AND FREE CONVECTION-CONDUCTION ALONG A VERTICAL CIRCULAR FIN IN MICROPOLAR FLUIDS

Abstract

The conjugate, transient, laminar, combined convection and conduction problem of mi-cropolar fluids along a vertical circular fin has been investigated. The coupled governing equations in dimensionless form are solved numerically using cubic spline collocation formulation. The analyses of heat transfer are divided into constant root temperature and constant heat flux from the root. Numerical results show that the heat transfer rate increases with increasing buoyancy force. A comparison of the heat transfer characteristics between a Newtonian fluid and a micropolar fluid is also discussed.