Open AccessA Computing Model of Foil-surface-type IR Decoy Radiation Based on Pyrophoric Multi-hole Activated Metal Combustion Model
Author(s) -
Biao Wang,
Chaozhe Wang,
Yongjian Yang,
Jinke Huang
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1314/1/012083
Subject(s) - foil method , infrared , combustion , decoy , radiation , materials science , chemistry , optics , physics , composite material , biochemistry , receptor
A computing model of foil-surface-type IR decoy radiation which considers the changes of combustion time, relative air velocity and height of the decoy is established in this paper. The diffusion concentration of oxygen in the pyrophoric multi-hole activated metal is studied firstly. By solving the heat balance equation of foil, the combustion model of foil is established. Based on this, the infrared radiation of a single foil is calculated and verified by comparison with the experimental results. Finally, the infrared radiation characteristics and the infrared image of the whole foil-surface-type IR decoy are obtained. The calculated results are in good agreement with the experimental measurements, so the computing model provides an effective method for predicting the combustion temperature of foil-surface-type IR decoy under high-altitude and high-speed launching conditions…