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Systematic cavitation tunnel tests of a Propeller in uniform and inclined flow conditions as part of a round robin test campaign

Lookup NU author(s): Batuhan Aktas, Professor Mehmet Atlar, Dr Serkan Turkmen, Dr Emin Korkut, Patrick Fitzsimmons

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Abstract

The effect of shaft inclination can induce important unsteady hydrodynamic phenomenon usually associated with small and high-speed craft. This paper presents systematic cavitation tunnel tests with a 214 mm diameter model propeller of a catamaran research vessel. The propeller is subjected to uniform and inclined flow conditions, to investigate its efficiency, cavitation and underwater radiated noise characteristics. The experiments were conducted in the Emerson Cavitation Tunnel of Newcastle University based on the starboard 5-bladed right-hand propeller of the University's research vessel, The Princess Royal. In the paper the details of the tests and significant findings for the effect of the shaft inclination on the propeller efficiency, cavitation and underwater radiated noise characteristics are presented. A better understanding is sought in relation to the noise signatures of different types of cavitation.The systematic tests presented in the paper also have a long-term objective, being the first of an organised round robin test campaign that is being currently undertaken by the members of the Underwater Noise Community of Practice (CoP) of Hydro Testing Forum (HTF). This long-term objective is to repeat similar tests in the different facilities of all CoP members to reveal the relative merits of their testing facilities for underwater noise investigations. (C) 2015 Elsevier Ltd. All rights reserved.


Publication metadata

Author(s): Aktas B, Atlar M, Turkmen S, Korkut E, Fitzsimmons P

Publication type: Article

Publication status: Published

Journal: Ocean Engineering

Year: 2016

Volume: 120

Pages: 136-151

Print publication date: 01/07/2016

Online publication date: 23/12/2015

Acceptance date: 07/12/2015

ISSN (print): 0029-8018

ISSN (electronic): 1873-5258

Publisher: Pergamon Press

URL: http://dx.doi.org/10.1016/j.oceaneng.2015.12.015

DOI: 10.1016/j.oceaneng.2015.12.015


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