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Mathematical Problems in Engineering - Volume 2015 2015, Article ID 304708, 12 pages -

Research ArticleSchool of Energy Science and Engineering, Harbin Institute of Technology, 92 West Dazhi Street, Harbin 150001, China

Received 21 August 2014; Accepted 21 October 2014

Academic Editor: Yong Huang

Copyright © 2015 Qing Ai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A dynamic region Monte Carlo method DRMC is proposed to simulate radiative heat transfer in participating medium. The basic principle and solution procedure of this method is described; radiative heat transfer in a two-dimensional rectangular region of absorbing, emitting, and-or scattering gray medium is analyzed. A comparison between DRMC and the traditional Monte Carlo method TMC is investigated by analyzing the simulated temperature distribution, the computing time, and the number of the sampling bundles. The investigation results show that, to compare with TMC, the DRMC can obviously reduce the computing time and storage capacity under the same solution precision for radiative transfer in optically thick medium; the DRMC allows bypassing the difficulties encountered by TMC in the limit of optically thick extinction.





Autor: Qing Ai, Hua Liu, Xinlin Xia, Chuang Sun, and Ming Xie

Fuente: https://www.hindawi.com/



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