Experimental and numerical investigations on wave dynamics of a dualchamber owc wave energy device

Dezhi Ning, Rongquan Wang, Bin Teng, Qingping Zou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Oscillating Water Column (OWC) wave energy device is one of the most studied and applied wave energy converters (WECs). The survivability of WECs is a major concern in the OWC design. In this study, the wave dynamics of a dualchamber OWC device is numerically and experimentally investigated. The experimental tests were carried out in the wave-current flume at the State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology. A fully nonlinear numerical wave flume based on potential-flow theory and time-domain higher-order boundary element method (HOBEM) is developed and applied to simulate the interaction between air, wave and the dual-chamber OWC device. The numerical model is validated by comparing the simulated wave induced pressure on the barrier walls with the measurements. Then the wave forces and the moment on the device is numerically investigated. The model and experimental results indicate that the horizontal wave force on the front barrier wall is much larger than that on the internal barrier wall. The joint between the back wall and the ground withstands the largest bending moment, therefore, is most vulnerable to structure damage and fatigue.

Original languageEnglish
Title of host publicationRodney Eatock Taylor Honoring Symposium on Marine and Offshore Hydrodynamics; Takeshi Kinoshita Honoring Symposium on Offshore Technology
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791858882
DOIs
Publication statusE-pub ahead of print - 11 Nov 2019
Event38th International Conference on Ocean, Offshore and Arctic Engineering 2019 - Glasgow, United Kingdom
Duration: 9 Jun 201914 Jun 2019

Conference

Conference38th International Conference on Ocean, Offshore and Arctic Engineering 2019
Abbreviated titleOMAE 2019
CountryUnited Kingdom
CityGlasgow
Period9/06/1914/06/19

Keywords

  • HOBEM
  • OWC
  • Physical test
  • Wave Energy Converter
  • Wave force

ASJC Scopus subject areas

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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