飞机尾喷焰光辐射特性计算建模中的二个重要环节的改进

Improvement of Two Keys on Modeling of Radiative Characteristic Calculation for Aircraft Plume

本文对使用谱带模型理论方法计算尾喷焰光辐射特性所出现的等价宽度问题进行了较为详细的讨论,研究了几种形式等价宽度的有效性,并提出了计算尾喷焰辐射的“穿截尾喷焰小气柱”方法,回避了四重积分的计算,得到了良好效果。

In this paper the equivalent width of statistical band model for radiative characteristic calculation of plume is discussed in detail. To avoid the fourfold intergral computation, a new method of plume radiation calculation, called 'small gas column method of crossing plume', is developed.This method has given positive results in application.