Instantaneous temperature measurement of supersonic combustion using coherent anti-Stokes Raman scattering

Wenbin Yang; Xinhua Qi; Jiawei Ye; Meng Li; Jiangning Zhou; Shuang Chen; Jinhe Mu

doi:10.1117/12.2589673

18 March 2021 Instantaneous temperature measurement of supersonic combustion using coherent anti-Stokes Raman scattering

Wenbin Yang, Xinhua Qi, Jiawei Ye, Meng Li, Jiangning Zhou, Shuang Chen, Jinhe Mu

Author Affiliations +

Proceedings Volume 11780, Global Intelligent Industry Conference 2020; 117800L (2021) https://doi.org/10.1117/12.2589673
Event: Global Intelligent Industry Conference 2020, 2020, Guangzhou, China

Abstract

A single-laser-shot N2 Q-branch Coherent Anti-Stokes Raman Scattering (CARS) is used to measure the instantaneous temperature of supersonic combustion in kerosene/air flame with Mach 2.6. The Unstable-resonator spatially enhanced detection (USED) phase matching is used to reduce turbulence effects and to improve the CARS signal intensity. An USED CARS measurement system, which has a high spatial solution of ~100μm in diameter, and a CARS spectrum calculating and fitting program CARSCF are developed. The CARS signal in supersonic combustion is measured and then used to calculate temperature, the results show that, during kerosene/Air ignited in Mach 2.6, the CARS signal first rise rapidly then fall sharply and finally rise slowly, while the temperature increase sharply and then decrease slowly and the average temperature is 1970 ± 144K with 6.5% of repeatability.

Citation Download Citation

Wenbin Yang, Xinhua Qi, Jiawei Ye, Meng Li, Jiangning Zhou, Shuang Chen, and Jinhe Mu "Instantaneous temperature measurement of supersonic combustion using coherent anti-Stokes Raman scattering", Proc. SPIE 11780, Global Intelligent Industry Conference 2020, 117800L (18 March 2021); https://doi.org/10.1117/12.2589673

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