Infrared and Laser Engineering, Volume. 46, Issue 7, 704001(2017)
Establishment of narrow spectral band model parameters database for gas high temperature radiation characteristics
The main radiation gas components are completely different in different propellant rocket engine exhaust plume, the gas spectral parameter database need to be built to quickly and accurately solve the infrared radiation characteristics of different propellant rocket exhaust plume using the spectral band model. A method of constructing the gas spectral parameter database and the program were proposed, based on the method and HITEMP2010, CO2 and H2O spectral parameter databases were establised with the wave number interval 5 cm-1 and the temperature interval 100 K; the model and the program were verified to be correct through comparing the calculated absorption coefficient distribution with the experimental measurements and comparing the calculated transmittance distribution with that calculated using the line-by-line method. Based on that, CO, OH, NO and NO2 spectral parameter databases were established based on HITEMP2010 and HITRAN 2012, and the transmittance distributions on different temperatures and different optical strokes were comparatively analyzed combined with the line-by-line method.
Get Citation
Copy Citation Text
Cai Honghua, Nie Wansheng, Wu Rui, Su Lingyu, Hou Zhiyong. Establishment of narrow spectral band model parameters database for gas high temperature radiation characteristics[J]. Infrared and Laser Engineering, 2017, 46(7): 704001
Category: 红外技术及应用
Received: Nov. 9, 2016
Accepted: Dec. 8, 2016
Published Online: Sep. 21, 2017
The Author Email: Honghua Cai (honghuacai@aliyun.com)