舰船排气装置红外辐射密度分布的数值预测

A NUMERICAL PREDICTION OF THE DISTRIBUTION OF INFRARED SIGNATURE INTENSITY OF EXHAUST GAS DEVICE ON SHIPS

本文研究了船舶动力装置排气系统的红外辐射分布情况，在计及各向同性参与性气体的情况下，建立了红外场预测的数学模型．与国外文献给出的实测结果相比，本文结果合理可信．文中给出的模型对合理设计舰船排气系统，减少红外辐射密度，提高战区舰船生存能力具有参考价值．

The distribution of infrared signatures of exhaust gas device on ships is studied numerically. A numerical model which considers the participating gases is established to predict the distribution of infrared signatures. The results of numerical prediction are reasonable and creditable compared with the experimental results obtained by foreign counterparts. The model established is simple and elective. With the help of this model,we can design a reasonable geometry Of exhaust gas device to reduce the maximum infrared signature intensity and improve the living ability of warships.