E-ISSN: 3061-9939
Tip Vortex Index (TVI) Technique for Inboard Propeller Noise Estimation
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Research Article
VOLUME: 2017 ISSUE: 207
P: 27-37
January 2017

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

J Nav Archit Mar Technol (JNAMT) 2017;2017(207):27-37
Savaş Sezen 1
Ali Dogrul 1
Şakir Bal 2
1. Department of Naval Architecture and Marine Engineering Naval Architecture and Maritime Faculty, Yildiz Technical University, Istanbul, Turkey
2. Department of Naval Architecture and Marine Engineering Faculty of Naval Architecture and Ocean Engineering, Istanbul Technical University, Istanbul, Turkey
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ABSTRACT

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