Influence of ejector technique on infrared radiation of the exhaust plume outside rectangular nozzle

Yunsong Feng; Yuan Lu; Ya Qiao

doi:10.1117/12.2033074

11 September 2013 Influence of ejector technique on infrared radiation of the exhaust plume outside rectangular nozzle

Yunsong Feng, Yuan Lu, Ya Qiao

Proceedings Volume 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications; 89072O (2013) https://doi.org/10.1117/12.2033074
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

For accurate knowledge of the impact of ejector technique on infrared radiation of the plume, the physical model of the rectangular nozzle is established. The 3-D flow field outside the rectangular nozzle is simulated by numerical method with software Fluent6.3 pre and post the application of ejector technique, then the data of the flow fields, such as temperature, pressure and density and so on, are obtained, and according to the characteristic of the rectangular nozzle plume the computational domain of infrared radiation was established. This paper uses Lorentz linear statistical narrow-band model to calculate the mean absorption coefficient of the plume in the narrow band. Then it uses Finite Volume Method(FVM) to solve the radiation transmission equations in gas medium, and it obtains the total intensity distribution in 3~5μm of the plume radiation pre and post the application of ejector technique. The results shows that the infrared radiant of the rectangular nozzle decreases significantly by 80% after the application of ejector technique.

Citation Download Citation

Yunsong Feng, Yuan Lu, and Ya Qiao "Influence of ejector technique on infrared radiation of the exhaust plume outside rectangular nozzle", Proc. SPIE 8907, International Symposium on Photoelectronic Detection and Imaging 2013: Infrared Imaging and Applications, 89072O (11 September 2013); https://doi.org/10.1117/12.2033074

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available