Abstract

An experimental study of integral and local pulsation processes in a swirling jet of superheated water has been carried out. The possibility of the occurrence of high-intensity low-frequency integral pulsations (1/f fluctuations) in a jet of boiling liquid under conditions of low superheating and boiling at single non-interacting centers has been shown. The precession of a spontaneously and forcedly swirling jet of boiling water has been revealed. The high correlation of integral and local pulsations has made it possible to relate high-intensity low-frequency integral pulsations in a jet with a 1/f power spectrum to the precession motion of the jet core.

中文翻译：

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沸水旋流的自发脉动

摘要

对过热水旋流中的整体和局部脉动过程进行了实验研究。在单个非相互作用中心的低过热和沸腾条件下，沸腾液体射流中出现高强度低频积分脉动（1/f 波动）的可能性已得到证实。已经揭示了自发和强制旋转的沸水射流的进动。积分脉动和局部脉动的高度相关性使得将具有 1/f 功率谱的射流中的高强度低频积分脉动与射流核心的进动运动联系起来成为可能。