VMFLGPU008

VMFLGPU008
Radiative Heat Transfer in a Rectangular Enclosure with Participating Medium

Overview

Reference	G.D Raithby, E.H. Chui. “A Finite Volume Method for Predicting a Radiant Heat Transfer in Enclosoures with Participating Media”. Journal of Heat Transfer. Volume 112, pp. 415-423, 1990
Solver	Ansys Fluent GPU
Physics/Models	Radiation modeling, discrete ordinate model
Input File	`vt008.cas.h5, vmfl008.jou`

Test Case

Radiative heat transfer in an enclosure with one hot wall and three cold walls at equal temperature is modeled. The enclosure is a cavity with a length-to-width ratio of 5. For the problem being considered, σsLy = 1.0, where σs is the scattering coefficient and Ly is the normal distance between the hot wall and the cold wall opposite to it.

Figure 197: Flow Domain

Material Properties	Geometry	Boundary Conditions
Scattering coefficient = 0.5/m	Dimensions of the domain: 10 m x 2 m x 0.5 m	Temperature of the hot wall = 200 K Temperature of the cold walls = 100 K

Material Properties

Geometry

Boundary Conditions

Scattering coefficient = 0.5/m

Dimensions of the domain:

10 m x 2 m x 0.5 m

Temperature of the hot wall = 200 K

Temperature of the cold walls = 100 K

Analysis Assumptions and Modeling Notes

Isotropic scattering and radiative equilibrium are assumed.

Results Comparison for Ansys Fluent GPU

Figure 198: Comparison of Non-Dimensional Heat Flus vs x-Star compared to Analytic Solution