Radiative heat transfer in absorbing, emitting, and anisotropically scattering boundarylayer flows
Abstract
The effect of scattering on heat transfer in boundary layer flows over a flat plate, over a 90 deg wedge and in stagnation flow is investigated. To this end, a linear anisotropic scattering model is employed. The P3 and P1 approximation methods are used to analyze the radiation part of the problem. The complete nonsimilar boundary layer equations are solved by an implicit collocation procedure. Comparisons with the existing exact results for the case of isotropic scattering show that overall, the P3 approximation is more accurate than the P1 approximation in predicting the total heat flux at the wall. Scattering generally leads to a reduction in the total heat flux. The degree of anisotropy can have a significant effect on the heat transfer in the boundary layer. The total heat flux for a forward scattering fluid can be greater than that for a nonscattering fluid depending on the value of the scattering albedo and the forwardbackward scattering parameter.
 Publication:

AIAA Journal
 Pub Date:
 August 1984
 DOI:
 10.2514/3.48555
 Bibcode:
 1984AIAAJ..22.1162Y
 Keywords:

 Anisotropic Media;
 Backscattering;
 Boundary Layer Flow;
 Forward Scattering;
 Radiative Heat Transfer;
 Wall Flow;
 Approximation;
 Boundary Layer Equations;
 Collocation;
 Flat Plates;
 Stagnation Flow;
 Fluid Mechanics and Heat Transfer