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Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution

ZHU Xi-juan,  Eriqitai,  LI Xi-xi,  WANG Qiang

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文章导航 > 航空动力学报  > 2012 >  27(1): 25-32
ZHU Xi-juan, Eriqitai, LI Xi-xi, WANG Qiang. Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution[J]. 航空动力学报, 2012, 27(1): 25-32.
引用本文: ZHU Xi-juan, Eriqitai, LI Xi-xi, WANG Qiang. Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution[J]. 航空动力学报, 2012, 27(1): 25-32.
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ZHU Xi-juan, Eriqitai, LI Xi-xi, WANG Qiang. Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution[J]. Journal of Aerospace Power, 2012, 27(1): 25-32.
Citation: ZHU Xi-juan, Eriqitai, LI Xi-xi, WANG Qiang. Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution[J]. Journal of Aerospace Power, 2012, 27(1): 25-32.
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Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

Infrared radiation simulation of exhaust system by coupling FVM with narrow band k-distribution

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

    摘要
  • 摘要: A three-dimensional infrared radiation code for exhaust system was developed by the finite volume method coupled with narrow band k-distribution in non-gray absorbing-emitting media. The final infrared signature had considered the atmosphere effect, and the simulation values were favorably consistent with testing ones. The results indicate that the relative errors considering the effect of atmosphere compared with that of the contrary condition reduce by 31%, it shows that when simulating the infrared radiation of the target which is received by the infrared detectors, even the calculation band is in atmospheric windows 3~5 μm, the effect of atmospheric transmission on infrared signature of the target should not be neglected.

     

    Abstract: A three-dimensional infrared radiation code for exhaust system was developed by the finite volume method coupled with narrow band k-distribution in non-gray absorbing-emitting media. The final infrared signature had considered the atmosphere effect, and the simulation values were favorably consistent with testing ones. The results indicate that the relative errors considering the effect of atmosphere compared with that of the contrary condition reduce by 31%, it shows that when simulating the infrared radiation of the target which is received by the infrared detectors, even the calculation band is in atmospheric windows 3~5 μm, the effect of atmospheric transmission on infrared signature of the target should not be neglected.

     

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    • 参考文献(25)
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出版历程
  • 收稿日期:  2011-01-17
  • 修回日期:  2011-04-14
  • 刊出日期:  2012-01-28

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