The effect of nozzle contraction ratio on the propagation of rotating detonation waves in subcritical kerosene

Xiaokun Wang; Hu Ma; Shizhuo Hou; Zhenjuan Xia

doi:10.1117/12.3026069

15 March 2024 The effect of nozzle contraction ratio on the propagation of rotating detonation waves in subcritical kerosene

Xiaokun Wang, Hu Ma, Shizhuo Hou, Zhenjuan Xia

Author Affiliations +

Proceedings Volume 13075, Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023); 1307504 (2024) https://doi.org/10.1117/12.3026069
Event: Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023), 2023, Kunming, China

Abstract

To investigate the influence of nozzle contraction ratio (ratio of nozzle outlet area to front cross section of nozzle contraction section) on the propagation characteristics of subcritical kerosene Rotating Detonation Waves (RDW), experimental methods such as high-frequency pressure sensors and voltage stabilizing sensors were employed to analyze the establishment process of the RDW. By varying the nozzle contraction ratio, the effects of changes in the nozzle outlet area on the establishment and propagation of the RDW were analyzed. During the experiments, the air flow rate was maintained at 1500g/s, the kerosene mass flow rate was 100g/s, the total air temperature was 600K, and the equivalence ratio was set to one. The research results indicate that as the nozzle contraction ratio increases, the combustion pressure gradually decreases. The propagation speed of the RDW initially increases and then decreases, and the ignition time follows a similar trend. Although the combustion chamber pressure reaches its maximum at a nozzle contraction ratio of 0.13, the ignition time and propagation speed of the engine are significantly slowed down, which is not conducive to the initiation and propagation of the RDW.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaokun Wang, Hu Ma, Shizhuo Hou, and Zhenjuan Xia "The effect of nozzle contraction ratio on the propagation of rotating detonation waves in subcritical kerosene", Proc. SPIE 13075, Second International Conference on Physics, Photonics, and Optical Engineering (ICPPOE 2023), 1307504 (15 March 2024); https://doi.org/10.1117/12.3026069

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