Standard tests for roughness factor

Report on additional tests

Report (2004)
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Copyright: © 2004 Edinburgh University
Wave overtopping Wave-structure interaction Rougness
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Published Date

01-10-2004

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Clash WP5 EVK3-CT-2001-00058 part D24B

Abstract

This report details the results of the second phase of the additional white spot tests undertaken by the University of Edinburgh. Part A was undertaken by Aalborg University who investigated the effect of wave obliquity. Edinburgh were commissioned to undertake a series experiments to determine the relative difference in overtopping characteristics for various types of armour units. Mean overtopping discharges were required behind the crest unit and also at the transition from slope to crest (excluding the crest). The sea state was a standard Jonswap spectrum ( gamma = 3.3 ) and the overtopping for approximately 1000 waves was to be recorded. The standard test programme gave three wave heights, two water levels and three wave steepnesses (sop = 0.02, 0.035 & 0.05). Chapter 2 (Van der Meer) describes the background and objectives of the proposed experiments. Chapter 3 reports the experimental set-up, Chapter 4 details the results and finally Chapter 5 gives conclusions. A small study to investigate the effect of crest berm width is given in Appendix I.

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