Numerical Modeling of Cavitation Rates and Noise Acoustics of Marine Propellers

The study numerically investigated the noise dissipation, cavitation, output power, and energy produced by marine propellers. A Ffowcs Williams–Hawkings (FW–H) model was used to determine effects of three different propellers with five blades a fixed advancing ratio. large-eddy Simulations best predicted turbulent structures’ spatial temporal variation, which would better illustrate flow physics. It found that high angle incidence between blade’s leading edge water direction typically causes hub vortex cavitate. roll-up cavitating tip closely related propeller noise. five-blade quieter under same dynamic conditions, such as ratio, compared three- or four-blade