Experimental investigations on the spray macroscopic and microscopic  characteristics in supersonic crossflows

Na Cao; Qing Xu; Jiming Ma; Shunhua Yang; Changcai Han; Liang Chen

doi:10.1117/12.2586413

12 March 2021 Experimental investigations on the spray macroscopic and microscopic characteristics in supersonic crossflows

Na Cao, Qing Xu, Jiming Ma, Shunhua Yang, Changcai Han, Liang Chen

Author Affiliations +

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 117632R (2021) https://doi.org/10.1117/12.2586413
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

Off-axis holographic was applied in the study focusing on the structure and droplets sizes and spatial distributions of water jets injected into a Ma=2 crossflow. The instantaneous structures of the jet, including surface waves in the near-injector region, bow shock waves, small droplets from the jet surface and ligaments, were visualized clearly. Spray droplets SMD and number density distributions in space were given, the measured SMD is about 8~9μm at x/d>40 and as the spray moves downstream, droplets size and distribution approaches a uniform distribution. The very complex flow physics relevant to the above process and others affect the injection and atomization which is a foundation of scramjet combustion process of liquid jet in a supersonic crossflow.

Citation Download Citation

Na Cao, Qing Xu, Jiming Ma, Shunhua Yang, Changcai Han, and Liang Chen "Experimental investigations on the spray macroscopic and microscopic characteristics in supersonic crossflows", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 117632R (12 March 2021); https://doi.org/10.1117/12.2586413

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