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Hydrodynamic performance characteristics of an oscillating water column device integrated with a pile breakwater
Published in Springer Science and Business Media Deutschland GmbH
2021
Abstract
The hydrodynamic performance characteristics of an oscillating water column (OWC) device mounted on a pile-supported breakwater (OWC-PSB) exposed to action of regular and random waves is investigated. The results are compared with that of a vertical wall type pile-supported breakwater (VW-PSB). The experiments were carried out in a wave flume in a constant water depth of 0.95 m covering intermediate to deepwater conditions. The wave energy transmission past both models is found to be similar under deepwater conditions, and marginally less for OWC-PSB in intermediate water depths. The OWC-PSB model exhibited less wave reflection for most of the tests. Since a part of incident wave energy is converted to water column oscillations inside the OWC chamber, the energy dissipation co-efficient for OWC-PSB is more than that for VW-PSB. The wave amplification factor for the OWC device is higher for long waves; however, the hydrodynamic efficiency is higher for high-frequency waves with the efficiency being a maximum close to 50% under deepwater conditions. © 2021, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
About the journal
JournalData powered by TypesetJournal of Ocean Engineering and Marine Energy
PublisherData powered by TypesetSpringer Science and Business Media Deutschland GmbH
ISSN21986444
Open AccessNo