Residual surface undulations in the OEB after the termination of wave generation in shallow water

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TypeTechnical Report
Physical description146 p.
SubjectWave damping in OEB; natural frequency; shallow water
AbstractDuring the generation of any wave in the tank we get relevant primary wave component along with bounded wave components if the incident primary wave has more than one frequency. Inevitably we also get interacted wave components, natural frequency components of the tank and other free waves. In this report the natural frequency energy components in the OEB were investigated using several cases of mono- and bi-chromatic waves in the tank. These natural frequency components were compared with the total energy and bounded wave energy measured in the tank. The reason of this investigation is to understand the extent of the natural frequency energy components of the tank of different modes in the measured wave data and also the damping rate of the residual surface undulation components in the tank with time. Results are shown for both monoand bi-chromatic waves. It is found that the primary frequency components are interacting with each other in different forms and wave energies are transferred to the interacted frequency bands. Also from the data, we observed that the natural frequency components for both longitudinal and transverse directions of the tank were too small compare to the primary wave components at least in the cases that we considered here.
Publication date
PublisherNational Research Council Canada
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedYes
NRC numberOCRE-TR-2014-013
NPARC number23000158
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Record identifier6121872b-7b53-4cd3-8407-b9f10d679f08
Record created2016-06-16
Record modified2016-10-03
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