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Antti Hynninen, Ville Viitanen, Jukka Tanttari, Rhena Klose, Claudio Testa and Jussi Martio
This work focuses on the main issues related to noise measurements in cavitation tunnels. The scope of the paper is to twofold: to obtain a better understanding on the main phenomena underlying experiments and to define consistent cavitation tunnel measu...
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Leonie S. Föhring, Peter Møller Juhl and Dietrich Wittekind
The strong increase in anthropogenic underwater noise has caused a growing intention to design quieter ships given that ship propellers are one of the dominating noise sources along the worldwide shipping routes. This creates an imminent demand for deepe...
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Jukka Tanttari and Antti Hynninen
Marine propulsors represent one of the most important contributors among anthropogenic sounds radiated into water. Blade based propulsors, e.g., propellers, generate tones at the blade passing frequency and its harmonics, especially in cavitating conditi...
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Bu-Geun Paik, So-Won Jeong, Young-Ha Park, Jong-Woo Ahn, Ilryong Park and Jein Kim
One of the important things in a ship?s rudder design is the incidence angle of the rudder inflow to improve rudder cavitation performance. In the present study, the rudder inflow is measured by a 3-D LDV (laser Doppler velocimetry) system in a large cav...
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Sunho Park, Woochan Seok, Sung Taek Park, Shin Hyung Rhee, Yohan Choe, Chongam Kim, Ji-Hye Kim and Byoung-Kwon Ahn
To understand cavity dynamics, many experimental and computational studies have been conducted for many decades. As computational methods, incompressible, isothermal compressible, and fully compressible flow solvers were used for the purpose. In the pres...
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Mohammed Arab Fatiha, Benoît Augier, François Deniset, Pascal Casari and Jacques André Astolfi
In this work, a collaborative experimental study has been conducted to assess the effect an imposed internal pressure has on the controlling the hydrodynamic performance of a compliant composite hydrofoil. It was expected that the internal pressure toget...
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Ville M. Viitanen, Antti Hynninen, Tuomas Sipilä and Timo Siikonen
In this paper we present results of delayed detached eddy simulation (DDES) and computational hydroacoustics (CHA) simulations of a marine propeller operating in a cavitation tunnel. DDES is carried out in both wetted and cavitating conditions, and we pe...
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Pieter Maljaars, Laurette Bronswijk, Jaap Windt, Nicola Grasso and Mirek Kaminski
In the past several decades, many papers have been published on fluid–structure coupled calculations to analyse the hydro-elastic response of flexible (composite) propellers. The flow is usually modelled either by the Navier–Stokes equations ...
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