Study on the laser irradiation characteristics of Al/Mg fuel-rich propellant at lower ambient pressures

Hua-jin Lai; Xiong Chen; Chang sheng Zhou; Heng sheng Xiang

doi:10.1117/12.2267284

8 March 2017 Study on the laser irradiation characteristics of Al/Mg fuel-rich propellant at lower ambient pressures

Hua-jin Lai, Xiong Chen, Chang sheng Zhou, Heng sheng Xiang

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 102551A (2017) https://doi.org/10.1117/12.2267284
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

An experimental study of the ignition and combustion characteristics of Al/Mg fuel-rich propellant at lower ambient pressures was performed. Measurements were obtained in a sealed vessel capable of reaching pressures as low as 0.1 atm with the application of vacuum pump. The ignition delay time was obtained by photodiodes which monitor the laser signal and flame signal; the linear burning rate of propellant was obtained by processing the continuous high-speed video images. The experimental results show that the reduction in pressure caused a longer ignition delay time, this dependence will get weaker as the externally applied heat flux increased; the linear burning rate reduced with the reduction of pressure, even reduced about 47% at 0.1atm compared to constant pressure.

Citation Download Citation

Hua-jin Lai, Xiong Chen, Chang sheng Zhou, and Heng sheng Xiang "Study on the laser irradiation characteristics of Al/Mg fuel-rich propellant at lower ambient pressures", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102551A (8 March 2017); https://doi.org/10.1117/12.2267284

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