The effect of observation angle on the infrared characteristics of solid rocket plume

Weibiao Du; Zhenhua Wang; Xingdong Bao; Hongxia Mao

doi:10.1117/12.2688783

6 November 2023 The effect of observation angle on the infrared characteristics of solid rocket plume

Weibiao Du, Zhenhua Wang, Xingdong Bao, Hongxia Mao

Proceedings Volume 12921, Third International Computing Imaging Conference (CITA 2023); 129211X (2023) https://doi.org/10.1117/12.2688783
Event: Third International Computing Imaging Conference (CITA 2023), 2023, Sydney, Australia

Abstract

This paper utilizes the flow and radiation model of the motor plume to explore the infrared radiation characteristics of solid rocket motor plume at different observation angles. It is found that with the increase of environmental height, the plume diffuses obviously, so the change trend of infrared radiation intensity is gentle under different observation angles. In this paper, six bands of radiance intensity are explored, and according to the characteristics of radiance intensity changing with angles at different heights, a quadratic curve is used to fit the data, and the adjustment coefficients are determined. The fitting coefficients at full altitudes are also given because of the trend of adjustment coefficients. Due to the insignificant diffusion effect of CO₂ in high-altitude zones, the motor plume radiation intensity in the 4 μm to approximately 5 μm band still varies significantly with the angle, so a unified quadratic equation is used for fitting radiation intensity with angles at full altitude.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Weibiao Du, Zhenhua Wang, Xingdong Bao, and Hongxia Mao "The effect of observation angle on the infrared characteristics of solid rocket plume", Proc. SPIE 12921, Third International Computing Imaging Conference (CITA 2023), 129211X (6 November 2023); https://doi.org/10.1117/12.2688783

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