摘要
[目的]排气烟羽辐射是舰船红外辐射的重要组成部分,分析排烟参数对红外辐射特征的影响对发展舰船隐身和反隐身技术具有重要作用。[方法]利用气体辐射逐线法模型求解含气体的辐射传递过程,计算得到不同排烟温度和流量条件下的红外辐射图像,并分析排烟参数对辐射亮度、光谱辐射强度和3~5μm波段的总辐射强度的影响。[结果]结果表明,排气烟羽在4.18和4.43μm处具有明显的强度峰值,而在4.26μm处具有明显的强度谷值。[结论]排气烟羽的红外辐射特征受排烟温度的影响较大,受排烟流量的影响较小。
[Objectives]Infrared radiative(IR)characteristics of the plume are the main part of ship infrared radiation.The influence analysis of exhaust parameters on radiative characteristics is very important for developing ship stealth and anti-stealth technology.[Methods]In this work,the line-by-line method is applied to solve radiative transfer in gaseous media.Infrared radiative images of plumes under different temperatures and flow rates are obtained.Radiance,spectral radiative intensity,and spectrum-integrated radiative intensity over 3−5μm are calculated and analyzed.[Results]Results show that there are obvious peaks of spectral radiative intensity curves at 4.18μm and 4.43μm,and an obvious valley at 4.26μm.[Conclusions]The infrared radiation characteristics of the ships exhaust plume are greatly affected by the exhaust temperature,but less affected by the exhaust flow rate.
作者
王振
宋振国
程勇
杨水华
黄志锋
WANG Zhen;SONG Zhenguo;CHENG Yong;YANG Shuihua;HUANG Zhifeng(China Ship Development and Design Center,Wuhan 430064,China;School of Power and Machinery,Wuhan University,Wuhan 430072,China)
出处
《中国舰船研究》
CSCD
北大核心
2023年第1期152-157,169,共7页
Chinese Journal of Ship Research
关键词
排气烟羽
红外辐射
光谱辐射
红外探测
exhaust plume
infrared radiation(IR)
spectral radiation
IR detection
