Natural Frequency of Oscillating Gaseous Bubbles in Ventilated Cavitation
Yu-Ning Zhang**
School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206
Abstract ：An improved formula is proposed for the prediction of natural frequency of oscillating gaseous bubbles in the ventilated cavitation by considering the liquid compressibility and the thermal effects. The differences between the previous formula and ours are quantitatively discussed in terms of both dimensional parameters (e.g., frequency and bubble radius) and non-dimensional parameters (e.g., the Péclet number). Our analysis reveals that our formula is superior to the existing formula in the low-frequency excitation regions.
收稿日期: 2016-12-18
出版日期: 2017-06-23
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2017, Vol. 34 
