Title

Spray Evolution of a Coflowing Round Liquid Jet in High Speed Air Flow

Abstract

Instantaneous flow visualization was used to study spray evolution in high-speed flow. At very low air velocities, the observed instability of the liquid column agreed qualitatively with numerical simulation of other workers using model eddies. Downstream, a supersonic region with helical instability displaying treelike branches, and a more familiar subsonic region with transverse instability waves, were observed. Apparently, most of the liquid jet was atomized in the upstream, supersonic regions, followed by entrainment of the surrounding air and mixing with it in the subsonic regions.

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Atomization; Computer Simulation; Flow Visualization; High-Speed Air Flow; Jets; Spraying; Supersonic Flow

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2001 Begell House, All rights reserved.

Share

 
COinS