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空間環(huán)境模擬器熱沉熱輻射當量吸收特性研究

Equivalent absorption characteristics of thermal radiation of heat sink in space environment simulator

  • 摘要: 文章采用蒙特卡羅法模擬射線的傳輸過程，分別對兩種熱沉形式的熱輻射當量吸收系數進行了數值計算，研究了表面形式、幾何高度及入射光線方向等參數對表面熱輻射當量吸收系數的影響。計算表明，正六邊形凹腔形式的吸收效果遠好于正四棱錐形式，但這種結構形式的吸收有明顯的方向性，正四棱錐形式對光線的吸收呈現各向同性。

     

    Abstract: Two kinds of heat sink are studied by Monte-Carlo method for the influence of some parameters, such as surface style, height, and light direction, upon the equivalent absorption coefficient of thermal radiation. The numerical calculation results show that the absorption of the heat sink with hexagonal hollow is better than that with quadrangular taper, but with more anisotropy.

     

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