Noise measurements of a cavitating propeller in different facilities : results of the round robin test programme

Tani, Giorgio and Viviani, Michele and Felli, Mario and Lafeber, Frans Hendrik and Lloyd, Thomas and Aktas, Batuhan and Atlar, Mehmet and Turkmen, Serkan and Seol, Hanshin and Hallander, Jan and Sakamoto, Nobuaki (2020) Noise measurements of a cavitating propeller in different facilities : results of the round robin test programme. Ocean Engineering, 213. pp. 1-13. 107599. ISSN 0029-8018 (

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Mitigation of shipping noise is a topical issue in marine engineering because of the dramatic increase in the levels of anthropogenic underwater noise and its impact on marine life. In recent years, hydro-acoustic research has focussed on the development of reliable methods for predicting underwater radiated noise (URN) due to cavitation, which is known to be the dominant contribution to the overall radiated noise spectrum of ships above the cavitation inception threshold. Model-scale measurements are currently considered the most reliable approach to study URN problems in marine engineering and are crucial for the verification and validation of numerical methods. However, their reliability is affected by several uncertainty sources for which suitable test procedures and post-processing techniques are needed. As a means to better understand the accuracy and reliability of underwater radiated noise measurements, a round-robin (RR) test programme for an open water propeller setup was organized within the Community-of-Practice “Noise” of the HydroTesting Forum, with the aim of comparing results among several institutes (i.e. University of Genova UNIGE, University of Newcastle UNEW, NMRI, SSPA, KRISO, CNR-INM and MARIN). This paper reports an overview of the RR programme and compares the different approaches and results.