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Numerical Simulation about the Characteristics of the Store Released from the Internal Bay in Supersonic Flow

Xiaohui Cheng1, Haiqing Si1,*, Yao Li1, Peihong Zhang2

1 College of General Aviation and Flight, Nanjing University of Aeronautics and Astronautics, Nanjing, 21100, China
2 China Aerodynamics Research and Development Center, Mianyang, 621000, China

* Corresponding Author: Haiqing Si. Email: email

(This article belongs to this Special Issue: Numerical Methods in Engineering Analysis, Data Analysis and Artificial Intelligence)

Computer Modeling in Engineering & Sciences 2023, 136(2), 1729-1742.


To understand the influence of the initial release conditions on the separation characteristics of the store and improve it under high Mach number (Ma = 4) flight conditions, the overset grid method and the Realizable turbulence model coupled with an equation with six degrees of freedom are used to simulate the store released from the internal bay. The motion trajectory and the attitude angle of the store separation under the conditions of different centroid, velocity, height and control measures are given by the calculated result. Through analysis, the position of the centroid will affect the separation of the store, which needs to be considered in the design. Increasing the launching height is conducive to the separation of the store. If the store has an initial velocity, it can leave the internal bay more quickly and reduce the probability of collision with the wall. Cylindrical rod and slanted aft wall control measures can improve the attitude of the store and make the store fall more smoothly.


Cite This Article

Cheng, X., Si, H., Li, Y., Zhang, P. (2023). Numerical Simulation about the Characteristics of the Store Released from the Internal Bay in Supersonic Flow. CMES-Computer Modeling in Engineering & Sciences, 136(2), 1729–1742.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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