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| Study on Backward Separation Characteristics of High-Speed Air Vehicle |
| XUE Fei1， WANG Yuchao1， WU Bin2，3 |
| 1. China Academy of Aerospace Aerodynamics， Beijing 100074， China；
2. Shanghai Electro-Mechanical Engineering Institute， Shanghai 201109， China；
3. College of Astronautics， Nanjing University of Aeronautics and Astronautics， Nanjing 211106， Jiangsu， China
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Abstract In this paper, the conical shape dispenser and submunition are used, and the backward separation simulation is carried out by numerical simulation. The interference effect of dispenser on submunition separation under the conditions of variable separation speed and variable angle of attack are studied. The research shows that, during separation process of submunition, the trajectory and attitudes of submunition change greatly, which caused by the interference of dispenser. It is also found that the separation speed mainly affects the relative displacement between dispenser and submunition, and higher speed will accelerate the submunition keeps away from dispenser. The separation angle of attack mainly affects the altitudes of submunition, the divergence of roll angle will be faster and oscillation amplitudes of pitch and yaw angle will be larger with higher separation angle of attack, which is negative for separation.
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Received: 13 September 2022
Published: 29 September 2022
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2022, Vol. 5 
