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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 67, 2015 - Issue 11
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Original Articles

Transient Radiative Transfer in a Graded Index Medium with Specularly Reflecting Surfaces

Cun-Hai Wang School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, P. R. China
,
Qing Ai School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, P. R. China
,
Hong-Liang Yi School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, P. R. ChinaCorrespondence[email protected]
&
He-Ping Tan School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, P. R. ChinaCorrespondence[email protected]
Pages 1232-1252 | Received 09 May 2014, Accepted 26 Jul 2014, Published online: 12 Feb 2015
 
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Abstract

A modified Monte Carlo (MC) method has been developed for solving transient radiative transfer in a one-dimensional scattering medium with a graded refractive index. The accuracy and computational efficiency of the algorithm are validated initially. With the introduction of time shift and superposition principle into the MC model, the computational efficiency is greatly improved. We make a comparative analysis of the time-resolved incident radiation (and radiative heat flux) distributions in the media with diffuse and specular reflection boundaries. Results show that the temporal and spatial radiative signals of the medium with specular reflection boundaries greatly differ from those having diffuse reflection boundaries.

Notes

* Case 1.

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