Abstract
The results of a numerical investigation of a pulsed submerged water jet flowing out from the nozzle of a powder water cannon are given. A mathematical model of the process is constructed and the results of the numerical calculations for a water cannon of specific design are given. The water flow in the water cannon is considered in the quasi-one-dimensional formulation and the submerged jet propagation and its interaction with an obstacle are considered in the axisymmetric formulation. It is shown that the external conditions only slightly affect the water cannon parameters and that for various distances from the obstacle the maximum pressure of the pulsed jet on the obstacle is close to the initial jet dynamic pressure.
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