VMFL066

VMFL066
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

Physics/Models Radiation modeling, discrete ordinate model

Input File

VMFL066_FLUENT.cas

Project Files Link to Project Files Download Page

Test Case

Two dimensional radiative heat transfer in an enclosure with one hot wall and three cold walls at equal temperature is modeled. The enclosure is a rectangular cavity with a length-to-width ratio of 5. For the problem being considered, σ^sL_y = 1.0, where σ^s is the scattering coefficient and L_y is the normal distance between the hot wall and the cold wall opposite to it.

Figure 157: Flow Domain

Material Properties	Geometry	Boundary Conditions
Scattering coefficient = 0.5/m	Dimensions of the domain: 10 m x 2 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

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

Figure 158: Comparison of Non-Dimensional Heat Flux along the Hot Wall