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Abstract

An experimental and numerical investigation of the flow around and noise produced by a blunt edged flat plate in a reverberant water tunnel is presented. The flow is at a Reynolds number based on chord of 6.8×106 and a Mach number of 5.3 × 10−3. Experimental measurements were taken in the Australian Maritime College Cavitation Research Laboratory closed recirculating variable-pressure water tunnel. Hydrophones mounted in the tunnel wall and pressure sensors attached to the plate were used to measure the pressures generated by the turbulent flow over the plate. A large eddy simulation was also conducted, with hydrodynamic pressures on the surface of the plate extracted and combined with Curle’s acoustic analogy to predict the pressure fluctuations on the wall of the water tunnel. The numerical predictions are found to agree well with the experimental measurements.

Item Type:	Conference Publication
Authors/Creators:	Croaker, P and Venning, J and Karimi, M and Brander, P and Doolan, C and Kessissoglou, N
Keywords:	acoustics, flow-induced noise, computational hydroacoustics, experimental measurement
Journal or Publication Title:	Proceedings of the 23rd International Conference on Acoustics
Publisher:	The German Acoustical Society
ISSN:	2226-7808
Copyright Information:	Copyright unknown
Related URLs:	Google Scholar: Venning, J UTAS Profile: Venning, J
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