Numerical study on the influence of aluminum on infrared radiation signature of exhaust plume

Wei Zhang; Qing-qing Ye; Shi-peng Li; Ning-fei Wang

doi:10.1117/12.2032940

11 September 2013 Numerical study on the influence of aluminum on infrared radiation signature of exhaust plume

Wei Zhang, Qing-qing Ye, Shi-peng Li, Ning-fei Wang

Proceedings Volume 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications; 890729 (2013) https://doi.org/10.1117/12.2032940
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

The infrared radiation signature of exhaust plume from solid propellant rockets has been widely mentioned for its important realistic meaning. The content of aluminum powder in the propellants is a key factor that affects the infrared radiation signature of the plume. The related studies are mostly on the conical nozzles. In this paper, the influence of aluminum on the flow field of plume, temperature distribution, and the infrared radiation characteristics were numerically studied with an object of 3D quadrate nozzle. Firstly, the gas phase flow field and gas-solid multi phase flow filed of the exhaust plume were calculated using CFD method. The result indicates that the Al₂0₃ particles have significant effect on the flow field of plume. Secondly, the radiation transfer equation was solved by using a discrete coordinate method. The spectral radiation intensity from 1000-2400 cm^-1 was obtained. To study the infrared radiation characteristics of exhaust plume, an exceptional quadrate nozzle was employed and much attention was paid to the influences of Al₂0₃ particles in solid propellants. The results could dedicate the design of the divert control motor in such hypervelocity interceptors or missiles, or be of certain meaning to the improvement of ingredients of solid propellants.

Citation Download Citation

Wei Zhang, Qing-qing Ye, Shi-peng Li, and Ning-fei Wang "Numerical study on the influence of aluminum on infrared radiation signature of exhaust plume", Proc. SPIE 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications, 890729 (11 September 2013); https://doi.org/10.1117/12.2032940

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