Detailed laser Doppler measurements of two-dimensional regular waves over submerged breakwaters

This paper stresses the importance of the installation of wave breakers to protect the shores of countries from the destructive effects that high water waves might have. In a first step towards understanding the actions of these waves, a wave tank experiment, containing a wave breaker was set up. Th...

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Bibliographic Details
Published in:Journal of hydraulic research 2003-11, Vol.41 (6), p.579-587
Main Authors: Durst, Franz, Fernanda Proenca, Maria, Taveira-Pinto, Francisco, Veloso-Gomes, Fernando
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Exact sciences and technology
Hydrology. Hydrogeology
laser Doppler measurements
regular waves
Submerged breakwaters
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Summary:This paper stresses the importance of the installation of wave breakers to protect the shores of countries from the destructive effects that high water waves might have. In a first step towards understanding the actions of these waves, a wave tank experiment, containing a wave breaker was set up. The facility is described and special arrangements are out lined to yield a partial section in which two-dimensional waves could be studied by laser Doppler anemometry (LDA). Two-dimensional LDA measurements were performed, yielding information on the complex motion in the waves. Phase average properties of the mean velocity field were recorded as well as phase average r.m.s. values of the velocity fluctuations. The results are presented at 33 x-locations. The data provide an insight into the complex fluid motion that occurs when a wave approaches the installed two-dimensional wave breaker. Examples of the final results are provided in the form of diagrams. A complete set of results is available under request and in an Appendix instructions to access the data are given.
ISSN:0022-1686
1814-2079
DOI:10.1080/00221680309506890