A numerical study of forced convection from an oscillating isothermal circular cylinder

Forced convection from a heated circular cylinder in an incompressible two-dimensional shear flow is investigated. The 2-D equations in cylindrical polar coordinates of flow motion and energy equation are solved using a higher order compact (HOC) finite difference scheme on non-uniform grids. The effects of shear rate (K) on flow and heat transfer characteristics are investigated. The numerical simulations are performed for fixed frequency ration (f/f0) 1.0 by varying maximum angular velocity (αm) between 0.5 to 1.0 and shear rate (K) 0.0-0.1 at Reynolds number (Re) 150 and Prandtl number (Pr) 0.7. The instantaneous isotherm patterns are presented and discussed for different K values. Also, the variation of the Nusselt number is shown to elucidate the effect of Prandtl number.