Abstract

The possibility of using fluid jet flows in the presence of an artificial cavity with a negative cavitation number to generate periodic pulsed jets is studied. Flow in a line consisting of a cavitator, an artificial gas cavity, and a converging nozzle through which liquid and gas flow into the atmosphere is investigated. Regimes in which the liquid exit flow is close to intermittent are experimentally found. For such flow regimes, a one-dimensional model for estimating the flow rate of liquid portions from the nozzle is proposed.

中文翻译：

---

使用空化自激振荡产生周期性脉冲式射流

摘要

研究了在具有负空化数的人造腔体的情况下使用流体射流产生周期性脉冲射流的可能性。在由气穴，人造气腔和会聚喷嘴组成的管线中的流动，研究了液体和气体通过该喷嘴流入大气的过程。实验中发现了液体出口流接近间歇的状态。对于这样的流动状态，提出了一种用于估计来自喷嘴的液体部分的流速的一维模型。