PARAMETRIC ANALYSIS OF RADIATIVE CONVECTIVE HEAT-TRANSFER AROUND A CIRCULAR-CYLINDER IN A CROSS-FLOW USING THE FINITE-VOLUME RADIATION SOLUTION METHOD

The radiative-convective heat transfer around a circular cylinder in a cross flow of a radiating gas has been numerically analyzed using the finite volume radiation solution method in a nonorthogonal coordinate system. The cross-flow Reynolds number based on the cylinder diameter is 40, and the fluid Prandtl number is assumed to be 0.7. The radiati ve heat transfer coupled with convection is reasonably predicted by th e finite volume radiation solution method. Distributions of the the lo cal Nusselt number are investigated according to the variation of radi ation parameters such as conduction-to-radiation parameter, optical th ickness, scattering albedo, and cylinder wall emissivity.