Effects of properties and location in the plume on droplet diameter for injection in a supersonic stream
Abstract
The mean droplet diameter in the spray due to the transverse injection of liquid jets into a supersonic airstream was studied using the diffractively scattered light method. The effects of viscosity, surface tension, jet/free airstream dynamic pressure ratio, injection diameter, and location in the plume on the droplet diameter were determined. It was found that viscosity decreases the penetration of the jet plume, while surface tension has no discernible effect; the mean droplet diameter is about 10 microns; and droplet size is directly related to the surface tension and viscosity of the injectant.
- Publication:
-
AIAA Journal
- Pub Date:
- July 1983
- DOI:
- 10.2514/3.8183
- Bibcode:
- 1983AIAAJ..21..956N
- Keywords:
-
- Drop Size;
- Drops (Liquids);
- Gas Streams;
- Liquid Injection;
- Spray Characteristics;
- Supersonic Flow;
- Interfacial Tension;
- Jet Mixing Flow;
- Light Scattering;
- Plumes;
- Viscosity;
- Fluid Mechanics and Heat Transfer