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A high power ultrasonic array based test cell

Gachagan, A. and McNab, A. and Blindt, R. and Patrick, M. and Marriott, C. (2004) A high power ultrasonic array based test cell. Ultrasonics, 42 (1-9). pp. 57-68. ISSN 0041-624X

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Abstract

This paper describes the use of finite element (FE) analysis as a tool in the design process for laboratory based ultrasonic test cells. The system was designed to incorporate an array of ultrasonic transducers to provide a pressure focus in the centre of the cell and importantly, operate both above and below the cavitation threshold of the load medium. Furthermore, the cell incorporates a coolant jacket to accommodate temperature control of the load material associated with the process. A 2D FE model corresponding to a slice through the operational plane of the cell was developed and used to investigate the influence of cell wall material and thickness, transducer configuration, rotation of a metallic stirrer blade and heat transfer fluid on the cell acoustic response. Importantly, experimentally measured pressure field maps demonstrate good correlation with the FE predicted fields. A final manufactured test cell is shown to produce a highly focussed region of cavitation. Finally, the importance in accurately representing the acoustic properties of the constituent materials used in such FE models is demonstrated through an illustrated example.

Item type: Article
ID code: 22477
Keywords: high power, finite element modelling, cavitation, test cell design, Electrical engineering. Electronics Nuclear engineering, Acoustics and Ultrasonics
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Depositing user: Strathprints Administrator
Date deposited: 14 Jul 2010 09:19
Last modified: 22 Mar 2017 10:58
URI: https://strathprints.strath.ac.uk/id/eprint/22477
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