A method and apparatus for controlling the coherence of a high-pressure fluid jet directed toward a selected surface. In one embodiment, the coherence is controlled by manipulating a turbulence level of the fluid forming the fluid jet. The turbulence level can be manipulated upstream or downstream of...http://www.google.de/patents/US6280302?utm_source=gb-gplus-sharePatent US6280302 - Method and apparatus for fluid jet formation
