A study on the effects of fluctuations of the supercavity parameters

•Several experiments were done to examine the oscillations of supercavity’s parameters.•An experimental setup with variable natural frequencies was designed to do these experiments.•The tests were performed on the wedge cavitator for different cavitation numbers.•The designed setup was useful for determining the effects of dynamic characteristics of the cavity.•The dependency of supercavity parameters to cavitation number was shown. Several experiments were conducted to examine the dynamics and vibrations of ventilated cavities. More than 100 test runs were performed. A water tunnel test and a vibrational setup were provided to examine the oscillations effects of the cavity’s parameters. The tests were performed on the wedge cavitator model at speeds of up to 6m/s with different ventilation rates. The range of cavitation number in this study was 0.135