Repository Article

·2017 OPEN ACCESS

Tip Vortex Index (TVI) Technique for Inboard Propeller Noise Estimation

Savaş Sezen YTU , Ali Doğrul YTU , Şakir Bal

DergiPark (Istanbul University)

Abstract

Cavitating marine propeller is one of the most dominant noise sources inmarine vessels.  The aim of this study isto examine the cavitating propeller noise induced by tip vortices for twinscrew passenger vessels. To determine the noise level inboard, tip vortex index(TVI) technique has been used. This technique is an approximate method based onnumerical and experimental data. In this study, it is aimed to predict theunderwater noise of a marine propeller by applying TVI technique for two bladedand three bladed propellers. The hydrodynamic performance of cavitatingpropeller has been calculated by a potential flow code based on lifting surfacemethod. The effect of cavitation number and propeller rotation speed on soundpressure level has been discussed.

Keywords

Propeller Cavitation Noise (video) Marine engineering Vortex Acoustics Advance ratio Underwater Propulsor Rotation (mathematics) Engineering Physics Geology Mechanics Blade pitch Aerospace engineering Computer science Mathematics Oceanography Turbine Geometry

Subject Areas

Cavitation Phenomena in Pumps ·Mechanics of Materials ·Physical Sciences
Ship Hydrodynamics and Maneuverability ·Ocean Engineering ·Physical Sciences
Fluid Dynamics Simulations and Interactions ·Computational Mechanics ·Physical Sciences

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