导航

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2020, Vol. 41 ›› Issue (12): 123682-123682.doi: 10.7527/S1000-6893.2020.23682

• Fluid Mechanics and Flight Mechanics • Previous Articles     Next Articles

Infrared decoy modeling method based on enhanced discrete phase model and chemical combustion

YANG Chunling, ZHANG Zhendong, ZHANG Tongyiyu   

  1. School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
  • Received:2019-11-27 Revised:2019-12-19 Published:2020-04-25
  • Supported by:
    Aeronautical Science Foundation of China (20170177001)

Abstract: Infrared (IR) decoys are a main IR countermeasure weapon. Establishing an accurate model of infrared decoy missiles will play an important role in the research of infrared guidance algorithms. However, the current Computational Fluid Dynamics (CFD) model of infrared decoys does not take the influence of infrared pyrotechnics combustion into consideration, directly leading to the decline in IR decoy modeling accuracy theoretically. Aiming at this problem, this study establishes a more accurate IR decoy simulation model by adding a chemical combustion phase based on the enhanced Discrete Phase Model (DPM) IR decoy model. Results show that the simulation accuracy of graphic characteristics of the new model is obviously improved compared to the traditional one.

Key words: modeling of infrared decoys, discrete phase model, computational fluid dynamics, chemical combustion, equivalent blackbody radiation

CLC Number: