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高速飞机
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  high-speed aircraft
    Numerical Simulation of IR Image of High-speed Aircraft
    高速飞机红外成像特性数值模拟研究
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  high-speed aircraft
A contemporary high-speed aircraft represents a complex three-dimensional configuration, where supersonic gas flow is accompanied by numerous local flow interaction zones, in particular, near the intersection of different surfaces.
      
One of the main problems which arise in the design of high-speed aircraft is the protection of the streamline surfaces against the erosion effect of solid particles and drops occurring in the free stream.
      
Defines, evaluates, and conducts research on thermal protection materials requirements for high-speed aircraft and space transportation systems.
      
For high-speed aircraft, severe aerodynamic heating may occur in local areas on the body of the vehicle.
      


In the article,a physical model of IR signature from high-speed aircraft is constructed.The IR character of high-speed aircraft is elicited on the base of considering the diathermanous of aircraft,the pneumatic heat,the atmospheric attenuation and background radiation including the sun,the sky and the earth.The Model has the capability to analyzing the operation of aircraft in flight at various speeds,viewing angels,and spectral response of the seeker.Ulteriorly,using the result,the simulation of IR image is...

In the article,a physical model of IR signature from high-speed aircraft is constructed.The IR character of high-speed aircraft is elicited on the base of considering the diathermanous of aircraft,the pneumatic heat,the atmospheric attenuation and background radiation including the sun,the sky and the earth.The Model has the capability to analyzing the operation of aircraft in flight at various speeds,viewing angels,and spectral response of the seeker.Ulteriorly,using the result,the simulation of IR image is created.

文中建立了高速飞机红外特性的物理模型 ,在考虑飞机内部传热、气动加热和太阳、天空、地面等背景辐射以及大气衰减的基础上计算得出了飞机 8~ 14 μm波段的辐射特性。分析对比了不同飞行速度、不同探测路径等条件下飞机的辐射特性 ,并进一步利用计算结果生成了模拟的红外图像。

 
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