水噴流の連続流れの領域におけるせき止め圧力の性質について

概要

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It is of interest to clarify dynamic properties of water jet pressure acting on the surface of an object to be cut in order to clarify the cutting mechanism. This pressure includes a wide range of frequency components from the pulsation of a plunger pump to the impact pressure caused by the impingement of droplets. In such case, the transducer characteristics affect the detected wave considerably, and the source wave of the pressure differs from the detected wave. In this paper a method of determining the source wave of stagnation pressure is presented. In addition, the relation-ship between the characteristics of the stagnation pressure of a water jet and the flow structure of a water jet is examined by flash photography using pulsed laser light. As a result, it is clarified that the dynamic property of stagnation pressure is closely related to the wavy motion of a water jet.
一般社団法人日本機械学会の論文
1996-05-25