Abstract
Ventilated partial cavity has been proven as an environmental-friendly and promising technology for ship drag reduction. However, the dynamic behavior of cavity closure and pressure under the wave effect still remains unclear. In this paper, the evolution of cavity shape and the oscillation of internal cavity pressure under the influence of different kinds of gust waves are investigated using the RANS coupled VOF method. Two types of cavity closure mode are found due to the presence of the gust wave. A strong correlation between the internal pressure variation and cavity oscillation behavior is revealed by the time–frequency analysis. Besides, it is found that the natural frequency of the cavity leads to an additional pressure fluctuation of the cavity, which is independent of waves.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
