Holography as Applied to Jet Breakup and an Analytical Method for Reducing Holographic Droplet Data
Final rept. Dec 1969-May 1972
AIR FORCE ROCKET PROPULSION LAB EDWARDS AFB CA
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The use of holography in studying certain fluid mechanics problems was investigated. This effort specifically examined the application of holography to 1 high speed supersonic flow fields by injecting different liquid jets perpendicularly into a Mach 3 gas stream to observe how jet breakup occurs, and 2 the atomization characteristics droplet size and spatial distribution of a liquid jet injected into quiescent, atmospheric air. The holograms were recorded in the off-axis, Fresnel, transmission arrangement. The analytical method for processing three-dimensional droplet data consisted of a system of computer programs which operated on the droplet size and spatial coordinates to determine size, mass, number and spatial distribution. Two methods for retrieving holographic data were devised.
- Test Facilities, Equipment and Methods
- Fluid Mechanics