Dynamics of a coflowing round liquid jet in a Mach 1.5 air stream
Abstract
The present experimental investigation of the atomization of a round liquid jet in a coflowing Mach 1.5 flow employs instantaneous flow-visualization photographs using a nanosec light pulse from a frequency-doubled Nd:YAG pulsed laser. Overexpanded, design, and underexpanded nozzle operating modes are associated with differing spray characteristics. Four distinct regions were observable in the overexpanded and design cases; in underexpanded conditions, six different regions were observed, and an interaction of the spray with the intercepting shock led to a bubblelike enlargement of the spray.
- Publication:
-
Joint Propulsion Conference and Exhibit
- Pub Date:
- June 1993
- Bibcode:
- 1993jpmc.confS....J
- Keywords:
-
- Atomizing;
- Fuel Injection;
- Jet Flow;
- Spray Characteristics;
- Flow Visualization;
- Schlieren Photography;
- Stagnation Pressure;
- Wind Tunnel Tests;
- Fluid Mechanics and Heat Transfer