STUDY ON CALCULATION METHOD OF VIEW FACTORS IN RADIANT HEAT TRANSFER ANALYSIS

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  • 放射熱伝達解析における形態係数の計算法についての研究
  • ホウシャ ネツ デンタツ カイセキ ニ オケル ケイタイ ケイスウ ノ ケイサンホウ ニ ツイテ ノ ケンキュウ

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In this paper we examine accuracy and speed of calculating view factors about several geometries using Monte Carlo method, Hemi-cube method, double area integral method and Mitalas-Stephenson method. As a result, the following conclusions are revealed : If there is no obstruct in geometry, Mitalas-Stephenson method has overwhelmingly good performance than other method. Although Hemi-cube method is not good at calculating view factors with very high accuracy, it is faster than Monte Carlo method as far as ordinay precision is required. Monte Carlo method is slower than other method, but it is easy and safe to calculate view factors with high precision using this method.

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