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Aerodynamic Characteristics Calculation and Diffusion Law Analysis of Rectangular-Chaff Clouds Under Airflow

Biao Wang1,*, Yongjian Yang1, Hesong Huang1

Aeronautics Engineering College, Air Force Engineering University, Xi’an, 710038, China.

* Corresponding Author: Biao Wang. Email: email.

Computer Modeling in Engineering & Sciences 2019, 118(3), 649-678. https://doi.org/10.31614/cmes.2019.05671

Abstract

To calculate the diffusion law of chaff cloud launched by aircraft, taking rectangular chaff as an example, the diffusion model of chaff cloud is established in this paper. Firstly, the coordinate systems of chaff are defined and the motion model of chaff is established. The motion model mainly includes chaff motion equation and rotation equation, which are obtained by combining the aerodynamic moment and aerodynamic damping. Then, the influence of multi-chaff aerodynamic interference on the movement of chaff is analyzed. Finally, considering the influence of overlap area between chaffs and chaff spacing on the aerodynamic coefficients, the multi-chaff motion model is obtained, and the simulation results are compared with the test results to verify the credibility of the model.

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APA Style
Wang, B., Yang, Y., Huang, H. (2019). Aerodynamic characteristics calculation and diffusion law analysis of rectangular-chaff clouds under airflow. Computer Modeling in Engineering & Sciences, 118(3), 649-678. https://doi.org/10.31614/cmes.2019.05671
Vancouver Style
Wang B, Yang Y, Huang H. Aerodynamic characteristics calculation and diffusion law analysis of rectangular-chaff clouds under airflow. Comput Model Eng Sci. 2019;118(3):649-678 https://doi.org/10.31614/cmes.2019.05671
IEEE Style
B. Wang, Y. Yang, and H. Huang "Aerodynamic Characteristics Calculation and Diffusion Law Analysis of Rectangular-Chaff Clouds Under Airflow," Comput. Model. Eng. Sci., vol. 118, no. 3, pp. 649-678. 2019. https://doi.org/10.31614/cmes.2019.05671



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