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Numerical study of the motions and drift force of a floating OWC device
- Issue Date
- 2월-2004
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- oscillating water column (OWC); wave energy; floating body motion and drift force
- Citation
- OCEAN ENGINEERING, v.31, no.2, pp 139 - 164
- Pages
- 26
- Journal Title
- OCEAN ENGINEERING
- Volume
- 31
- Number
- 2
- Start Page
- 139
- End Page
- 164
- ISSN
- 0029-8018
- Abstract
- The motion and the drift force of a floating OWC (oscillating water column) wave energy device in regular waves are studied taking account of the oscillating surface-pressure due to the pressure drop across the duct of the air chamber. The potential problem inside the chamber is formulated by making use of the Green integral equation associated with the Rankine-type Green function while the outer problem with the Kelvin-type Green function. The added mass, wave damping and excitation coefficients as well as the motion and drift force of the OWC device are calculated for various values of parameter related to the pressure drop. (C) 2003 Elsevier Ltd. All rights reserved.
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