In this paper, the method of computational fluid dynamics are employed for examination of the formation of a pulsate turbulent waterjet in a Helmholtz resonator type nozzle. The analysis is based on the numerical solution of the conservation equations of mass and momentum, and the standard k-ε turbulent model. The evaluation of the flow characteristics within the nozzle is carried out. Also, the experiments show substantial advantages of this nozzle over a conventional waterjet as a machining tool. The end results of this work will be a knowledge necessary for the improvement of nozzle design and better formation of water and slurry jet.

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