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本文分析了空化噪声的基本特性。空化噪声的频域统计参数能给出有关空化流特征的某些信息,同样,其时域统计参数亦能给出有关空化流特征的某些信息,而且某些时域的信息可能更为直观。本文讨论了空化噪声平均脉冲记数率与空化数之间的关系,实验指出平均脉冲记数率可以定量地反映空化流的发展状态.
This paper analyzes the basic characteristics of cavitation noise. The frequency domain statistical parameters of cavitation noise can give some information about the characteristics of cavitation flow. Similarly, the statistical parameters in time domain can also give some information about the characteristics of cavitation flow, and some time domain information may More intuitive. In this paper, we discuss the relationship between cavitation noise average pulse rate and cavitation number. The experiment shows that the average pulse rate can quantitatively reflect the development of cavitation flow.