System for Focused Generation of Pressure by Bubble Formation and Collapse
Patent, Filed 21 Dec 95, patented 12 Jan 99
DEPARTMENT OF THE NAVY WASHINGTON DC
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A pressure generating system uses a shock wave chamber filled with a liquid pressurized to a static pressure different from ambient atmospheric pressure. Once a preferred location is established in the chamber, a pulsed compressional acoustic shock wave introduced into the liquid is reflected from a free surface of the liquid as a dilatation wave focused on a point at which a bubble forms and expands about an object. The static pressure causes the bubble to collapse around the object to generate a high pressure thereat.
- Test Facilities, Equipment and Methods