The influence of turbulence modelling techniques on the predicted cavitation behaviour on a NACA0009 foil

Abstract

The work presented here forms part of a project focusing on the development of cost-effective measures of classifying the noise levels from ship propellers with the use of numerical techniques available in OpenFOAM software. It is also related to the on-going research within the Faculty of Engineering and the Environment at the University of Southampton, looking at underwater noise of tidal turbines. Ultimately, the aim of the complete study is to enable the assessment of the environmental impact of a ship on the marine ecosystems. In this work a set of results from numerical experiments applied to the NACA0009 foil is presented in the context of quantifying the noise levels produced by a cavitating body in a uniform flow. The simulations utilise both URANS and LES methods and provide a means of characterising the differences between the observed flow patterns from the cavitation modelling point of view. In particular, the interactions of the cavitation phenomena with the turbulence, both modelled and resolved, are studied. Furthermore, an overview of how the considered cavitation models may be used for the purpose of noise prediction is given

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Identifiers

ORCID for Artur Konrad Lidtke: orcid.org/0000-0002-2687-3083

ORCID for Stephen Turnock: orcid.org/0000-0001-6288-0400

ORCID for Victor Humphrey: orcid.org/0000-0002-3580-5373

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