Abstract
Jet pump was widely used in the realm of water conservancy and aerospace. The trouble of lower efficiency on transfer restricted its rapid development and further application. A large number of experimental studies showed that its efficiency could be improved by pulsed jet, and pulsed jet generated in the device had higher impact on object. Based on massive literatures, generation ways of pulsed jet and study marches of excited pulsed jet were introduced briefly. At the same time, the progress in study and application of self-excited pulsed oscillation jet were focused on. Furthermore, in view of the domestic present situation of reservoir dredging, the next researches of jet dredging combination with artificial density-flow were prospected
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