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Proceedings Paper

Numerical simulation of infrared spectrum and radiance characteristics of rocket engine exhaust plume
Author(s): Xingdong Bao; Hongxia Mao; Ying Xu; Zhenghua Wang; Yanbing Dong
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Paper Abstract

Exhaust plume from the rocket engine produces strong infrared radiation signals, widely used for target diagnosing, detecting and identifying. Exhaust plume flow field have the characteristics of high temperature, high speed and multi-species reacting flow. The radiation mechanism is very complex in the flow field. Infrared spectrum of exhaust plume involving complex gaseous kinetic and thermodynamic processes, which makes the exhaust plume have a complex spectral structure. On the base of a rocket motor, the two-dimensional axisymmetric and Reynolds Averaged Navier-Stokes equations (RANS) coupled with chemical reactions are solved. With the flow field of the exhaust plume, line-by-line method and LOS method are used to calculate the infrared radiation of the exhaust plume. The spectral radiation characteristics of H2O, CO2, CO and HCL in 2μm to 8.6μm band are analyzed in detail, and the characteristics of radiance distribution in typical gas emission bands are studied.

Paper Details

Date Published: 7 November 2018
PDF: 7 pages
Proc. SPIE 10832, Fifth Conference on Frontiers in Optical Imaging Technology and Applications, 108321J (7 November 2018); doi: 10.1117/12.2511640
Show Author Affiliations
Xingdong Bao, Science and Technology on Optical Radiation Lab. (China)
Hongxia Mao, Science and Technology on Optical Radiation Lab. (China)
Ying Xu, Science and Technology on Optical Radiation Lab. (China)
Zhenghua Wang, Science and Technology on Optical Radiation Lab. (China)
Yanbing Dong, Science and Technology on Optical Radiation Lab. (China)


Published in SPIE Proceedings Vol. 10832:
Fifth Conference on Frontiers in Optical Imaging Technology and Applications
Junhao Chu; Wenqing Liu; Huilin Jiang, Editor(s)

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