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|1. (WO2017033998) JET FLOW GENERATING DEVICE AND JET FLOW GENERATING METHOD FOR JET FLOW GENERATING DEVICE|
|Title:||JET FLOW GENERATING DEVICE AND JET FLOW GENERATING METHOD FOR JET FLOW GENERATING DEVICE|
Provided is a jet flow generating device that can generate a high-velocity liquid jet flow, that can generate a liquid jet flow with high efficiency, that can adjust the flow velocity and energy of a liquid jet flow and that can adjust a jet flow time. A jet flow generating device 100C comprises: a cylindrical liquid chamber 160; a nozzle 165 that opens an end of the liquid chamber 160 and jets a liquid F to the outside; a liquid supply channel 140 that supplies the liquid F to the inside of the liquid chamber 160; a laser light radiating unit 21 that radiates pulsed laser light into the inside of the liquid chamber 160 to vaporize the liquid F; and a laser oscillator (laser device 2) that generates pulsed laser light. The laser oscillator independently controls laser light intensity and laser light pulse width. An inner surface of the liquid chamber 160 includes a mirror surface. Further included is an adjusting unit (fiber driving device 170C, automatic control unit 41) that adjusts the distance between the nozzle 165 and the laser light radiating unit 21 in accordance with either or both of the pulsed laser light intensity and laser light pulse width of the laser light radiating unit 21.