Radiation heat transfer dependent scattering

For radiation heat transfer in porous media, the same unit-cell approach is used and the particles in each cell are treated as scatterers. The scattering also becomes dependent when the porosity is not close to unity. The radiation properties are related to the optical properties and the porosity. 

Tien, C. L. and Drolen, B. L. (1987). Thermal Radiation in Particulate Media with Dependent and Independent Scattering. In Annual Review of Numerical Fluid Mechanics and Heat Transfer. Ed. T. C. Chawla. Washington, D.C. Hemisphere. 

S. Kumar, and C.-L. Tien, Dependent Scattering and Absorption of Radiation by Small Particles, ASMEJ. Heat Transfer, (112) 178-185,1990. 

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