Acoustic analysis of ship propeller using CFD

The acoustic levels generated by ship propeller are very much important in the design and development of the propeller from stealth technology point of view. The KCS SVA 1193 model of propeller geometry has been taken from the literature. The complex 3D geometry of the propeller is created using CATIAV5. The propeller geometry, surrounded by the sea water, has been considered by creating the fluid domain around the propeller. The acoustic levels, generated by the propeller, are computed using commercial software package ANSYS FLUENT. The unstructured mesh is generated in the fluid domain. The k-is an element of standard turbulence model is selected to capture the viscous effects. The velocity at the inlet, pressure at outlet and moving frame of reference boundary conditions are used for computational analysis. Broadband noise model is used to capture the effects of the acoustic waves. The thrust and torque have been estimated for the chosen propeller. In this analysis, the acoustic power level of the propeller is captured and the non-dimensional coefficients are calculated.