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

Yıl 2017, Sayı: 207, 27 - 37, 03.04.2017

Savaş Sezen Ali Dogrul Şakir Bal

Öz

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.

Anahtar Kelimeler

Acoustic, Lifting Surface Method, Underwater Noise, Tip Vortex Index

Kaynakça

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