Finite Volume Computation of the Mitigation of Cavity Pulsation

9th International Symposium on Cavitation

Lindau, J.^1 ; Skidmore, G.^1 ; Brungart, T.^1 ; Moeny, M.^1 ; Kinzel, M.^1

Penn State Applied Research Lab, PO Box 30, State College

PA

16804-0030, United States^1

关键词: Cavity pulsation;    Cavity size;    Mass flow rate;    Numerical approaches;    Sinusoidal modulation;    Ventilated supercavity;    Ventilation flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/656/1/012158/pdf
DOI  :  10.1088/1742-6596/656/1/012158

来源: IOP

【 摘 要 】

Finite volume based modeling of ventilated supercavity pulsation and its mitigation via a priori modulation of ventilation flow was investigated. Simulated pulsation was numerically achieved, as was mitigation of pulsation via sinusoidal modulation of the ventilation flow. In addition to confirmation that the numerical approach is sufficient to capture mitigation, it was found that modulated ventilation, without altering the mean ventilation mass flow rate, results in altered cavity size, pressure, and closure condition.