螺旋桨飞机尾流红外抑制数值模拟研究

摘要

碳颗粒群抑制尾流红外辐射是红外隐身技术重要的课题之一。以计算流体力学软件Fluent为平台，对碳颗粒群抑制某型螺旋桨飞机尾流红外辐射开展数值模拟研究。采用射线踪迹法对红外辐射传输进行计算，通过对比红外辐射强度，总结出适合该型螺旋桨飞机的颗粒喷射速度、喷射量等规律，为下一步开展实验研究、方案设计提供参考。%Infrared radiation suppression of wake flow with carbon particles group is one of the important subjects of infrared stealth technology. Based on the platform of computational fluid dynamics software Fluent,numerical simula-tion of infrared radiation suppression of wake flow of propeller airplane with carbon particles has been carried out. In-frared radiation translation is calculated by ray-tracing method. By comparing the intensity of infrared radiation,laws of jet velocity and injection quantity of the particles which are suitable for this type of propeller airplane are obtained, which can provide references for carrying out experimental research and program design.