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Visualisation of flow conditions inside a shoreline wave power station

Visualisation of flow conditions inside a shoreline wave power station
Visualisation of flow conditions inside a shoreline wave power station
The particle flow inside an oscillating water column type wave power-station varies with time and changes direction. In order to establish flow patterns and energy dissipating mechanisms, and to assess the influence of geometry changes on the hydraulic performance, flow visualisation experiments were conducted on a 1/36 two-dimensional model of the Islay prototype wave power-station. It was found that large vortices develop around the comparatively thin front wall for in- and outflow and that internal sloshing occurs during the inflow period. From the observations it could be deduced that the front lip curvature and thickness have to be increased. Previous suggestions to structure the front wall surface in order to reduce wave loads had to be revised as these obstacles would interfere with the inflow. An internal breaker was observed, indicating that the loads on the back wall might be considerably higher than assumed.

0029-8018
629-641
Muller, Gerald
f1a988fc-3bde-429e-83e2-041e9792bfd9
Whittaker, Trevor J.T.
1ff244e2-d9b3-4c5d-92bb-b03b1c42787f
Muller, Gerald
f1a988fc-3bde-429e-83e2-041e9792bfd9
Whittaker, Trevor J.T.
1ff244e2-d9b3-4c5d-92bb-b03b1c42787f

Muller, Gerald and Whittaker, Trevor J.T. (1995) Visualisation of flow conditions inside a shoreline wave power station. Ocean Engineering, 22 (6), 629-641. (doi:10.1016/0029-8018(94)00032-3).

Record type: Article

Abstract

The particle flow inside an oscillating water column type wave power-station varies with time and changes direction. In order to establish flow patterns and energy dissipating mechanisms, and to assess the influence of geometry changes on the hydraulic performance, flow visualisation experiments were conducted on a 1/36 two-dimensional model of the Islay prototype wave power-station. It was found that large vortices develop around the comparatively thin front wall for in- and outflow and that internal sloshing occurs during the inflow period. From the observations it could be deduced that the front lip curvature and thickness have to be increased. Previous suggestions to structure the front wall surface in order to reduce wave loads had to be revised as these obstacles would interfere with the inflow. An internal breaker was observed, indicating that the loads on the back wall might be considerably higher than assumed.

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Published date: August 1995

Identifiers

Local EPrints ID: 184971
URI: http://eprints.soton.ac.uk/id/eprint/184971
ISSN: 0029-8018
PURE UUID: e9595c63-10dc-4260-a936-14a7151c9d52

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Date deposited: 18 May 2011 13:54
Last modified: 14 Mar 2024 03:10

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Contributors

Author: Gerald Muller
Author: Trevor J.T. Whittaker

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