Share Email Print
cover

Proceedings Paper

Theoretical calculation of mid-infrared spectra from hypersonic non-ablative sphere
Author(s): Jie Wu; Xilong Yu; Xijuan Zhu; Jing Ma; Hongxia Mao
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Hypersonic body moving in the atmosphere will suffer high temperature reacting flows which will emit complex radiation. Theoretical calculation was taken in this paper for a hypersonic non-ablative sphere. Hypersonic flow around the sphere was simulated using 9 species chemical kinetic and two temperature thermal non-equilibrium model. Based on this simulated flow field, the LOS method is used to solve radiative transfer and line-by-line model is used to calculate the spectrum from molecular and atoms in mid-infrared. The spectra from different components have been analyzed one by one. The calculation founds out that atom N and O diatomic molecule NO and bremsstrahlung will be important radiation source in this pure air hypersonic flow field. The radiation from hypersonic flow field has been analyzed in both high pressure environment and low pressure environment.

Paper Details

Date Published: 1 November 2016
PDF: 12 pages
Proc. SPIE 10157, Infrared Technology and Applications, and Robot Sensing and Advanced Control, 1015727 (1 November 2016); doi: 10.1117/12.2246778
Show Author Affiliations
Jie Wu, Institute of Mechanics (China)
Science and Technology on Optical Radiation Lab. (China)
Xilong Yu, Institute of Mechanics (China)
Xijuan Zhu, Science and Technology on Optical Radiation Lab. (China)
Jing Ma, Science and Technology on Optical Radiation Lab. (China)
Hongxia Mao, Science and Technology on Optical Radiation Lab. (China)


Published in SPIE Proceedings Vol. 10157:
Infrared Technology and Applications, and Robot Sensing and Advanced Control

© SPIE. Terms of Use
Back to Top