Visualization of supersonic ethylene jet flames in a hot coflow by OH-PLIF

Xiaobo Tu; Bing Liu; Linsen Wang; Xinhua Qi; Bo Yan; Jinhe Mu; Shuang Chen; Fei Qin

doi:10.1117/12.2524291

29 March 2019 Visualization of supersonic ethylene jet flames in a hot coflow by OH-PLIF

Xiaobo Tu, Bing Liu, Linsen Wang, Xinhua Qi, Bo Yan, Jinhe Mu, Shuang Chen, Fei Qin

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110462K (2019) https://doi.org/10.1117/12.2524291
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

Planar laser induced fluorescence (PLIF) is a powerful tool to visualize the flame structure, especially for the turbulent flame. In this paper, we employ OH-PLIF technique to analyze the structure of a supersonic ethylene jet flame on a turbulent burner. This burner consists of a central jet and hot coflow. The Mach numbers of the jet vary from 1.0 to 1.6, corresponding to Reynolds numbers ranging from 40893 to 65455. The flame structures are imaged by OH-PLIF measurement. The measurement results reveal that the OH concentrations decrease with the increase of jet velocity or decrease of the O₂ fraction. And the extinction and re-ignition of flame take place when the jet velocity is high or the O₂ fraction is small. These measurement results help to understand the interaction between flame and highly turbulent flow.

Citation Download Citation

Xiaobo Tu, Bing Liu, Linsen Wang, Xinhua Qi, Bo Yan, Jinhe Mu, Shuang Chen, and Fei Qin "Visualization of supersonic ethylene jet flames in a hot coflow by OH-PLIF", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110462K (29 March 2019); https://doi.org/10.1117/12.2524291

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