Sound is vital for marine animals to navigate and find prey, but underwater noise from ships negatively affects them. This study aims to develop a predictive method for non-cavitating propeller radiated noise. The interaction between the turbulence and propeller blade is important for this method.
COMSOL Multiphysics is a software package used for verification. The complexity of the loads that can be used in COMSOL Multiphysics is limited and is not suitable for a turbulent flow load. Simple load cases were used as verification.
Various methods are employed to obtain a response power spectral density (PSD) identical to COMSOL Multiphysics. The KM-method matched the COMSOL response PSD well, while the A-matrix method faced challenges. The state-space reconstruction method showed some similarity while using a proportionally-damped response function, but did not fully match the COMSOL response PSD.