Hostname: page-component-848d4c4894-8bljj Total loading time: 0 Render date: 2024-07-07T13:25:26.776Z Has data issue: false hasContentIssue false
  • English
  • Français

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
Get access Rights & Permissions [Opens in a new window]

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

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.