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Wave-tank experiments on an immersed vertical circular duct

Published online by Cambridge University Press:  19 April 2006

G. F. Knott  and
J. O. Flower
G. F. Knott
Affiliation:
School of Engineering and Applied Sciences, University of Sussex, Brighton, BN1 9QT
J. O. Flower
Affiliation:
Department of Engineering Science, University of Exeter, North Park Road, Exeter EX4 4QF
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Abstract

A series of experiments is described in which a fully-submerged circular duct situated with its axis vertical is subjected to regular incident waves. The resulting wave-interaction effects are defined in terms of reflexion coefficients derived from waveheight measurements, and a pressure coefficient derived from measurements of pressure in the depths of the enclosure. The experiments were conducted in a wide tank, so simulating open-sea conditions, and in a narrow tank where wall effects were important. The particular case when a transverse standing wave was induced above the duct was examined in detail.

These three-dimensional experiments complement a previous investigation into the performance of two-dimensional ducts and are of current practical significance in the context of sub-sea wave-energy conversion.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 100 , Issue 2 , 25 September 1980 , pp. 225 - 236
Copyright
© 1980 Cambridge University Press

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References

Budal, K. 1977 Theory for absorption of wave power by a system of interacting bodies. J. Ship Res. 21, 248–253.Google Scholar
Greenhow, M. J. L. 1979 The hydrodynamic interactions of spherical wave-power devices in surface waves. Paper presented at IMA Conf. ‘Power from sea waves’, Edinburgh.
Knott, G. F. & Flower, J. O. 1978 A wave-height recorder for laboratory use. Int. Shipbuilding Prog. 25, 257–260.Google Scholar
Knott, G. F. & Flower, J. O. 1979 Wave-tank experiments on an immersed parallel-plate duct. J. Fluid Mech. 90, 327–336.Google Scholar
Lighthill, M. J. 1979 Two-dimensional analyses related to wave-energy extraction by submerged resonant ducts. J. Fluid Mech. 91, 253–317.Google Scholar
Lighthill, M. J. & Simon, M. J. 1979 Mathematical analyses related to the Vickers project. Paper presented at IMA Conf. ‘Power from sea waves’, Edinburgh.