Volume 5 Issue 2
Apr.  2012
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FANG Qian-qian, FANG Wei, WANG Kai. Calculation of effective emissivity of blackbody cavities by Monte-Carlo method[J]. Chinese Optics, 2012, 5(2): 167-173. doi: 10.3788/CO.20120502.0167
Citation: FANG Qian-qian, FANG Wei, WANG Kai. Calculation of effective emissivity of blackbody cavities by Monte-Carlo method[J]. Chinese Optics, 2012, 5(2): 167-173. doi: 10.3788/CO.20120502.0167

Calculation of effective emissivity of blackbody cavities by Monte-Carlo method

  • Received Date: 21 Dec 2011
  • Rev Recd Date: 23 Feb 2012
  • Publish Date: 10 Apr 2012
  • Calculation of the effective emissivity of blackbody cavities by the Monte-Carlo method is reviewed. Firstly, the theoretical basis of Monte-Carlo method is expounded, and then the forward and backward ray tracing methods are illustrated. Compared with the forward ray tracing method, the backward ray tracing method can easily calculate the directional effective emissivity, and can get average normal effective emissivity and the hemispherical effective emissivity. Finally, the Monte-Carlo and theoretical calculation methods are compared, and it is confirmed that Monte-Carlo method is accurate in calculating the effective emissivity of blackbody cavities, whereas the disadvantage is slow computing speed.

     

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