Radiation Heat Transfer in Mixed Convection Flows

Kurzfassung

In the present paper the influence of radiation heat transfer in mixed convection buoyant turbulent flows is considered. The results show that radiation heat transfer is an essential part of the total flow system in thermal driven flows. It has to be taken into account to get accurate flow predictions. We couple a parallel Discrete Transfer Radiation Method (DTRM) for the simulation of the surface to surface radiation heat transfer with the DLR THETA code, an unstructured incompressible Navier-Stokes-Solver developed by the German Aerospace Center (DLR), which supports convective heat transport, very large grids, high complex geometries and massive parallel computations.