Positive Drift of Backward‐Bent Duct Barge
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 118, Issue 1
Abstract
Results of an experimental and theoretical study of the positive drift of a 1.7-m model of a backward-bent duct barge (BBDB) wave energy conversion system are presented. The results show that the positive drift of the BBDB model is experienced over a rather wide range of wave frequencies. This frequency range depends on a number of parameters that include the water depth and the weight distribution of the barge. The driving force for the positive drift is at the 90° bend in the internal water-column duct located at the bow, while the direction of the drift is a function of the phase difference between the water-column oscillations and the external wave at the bow.
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References
1.
Masuda, Y. (1987). “Experiences in pneumatic wave energy conversion.” Utilization of ocean waves—Wave to energy conversion, M. E. McCormick and Y. C. Yim, eds., ASCE, 1–33.
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Masuda, Y., Yamazaki, T., Outa, Y., and McCormick, M. (1988). “The backward bent duct buoy—An improved floating type wave power device.” Proc. OCEANS '88 Conference, Sept., 1067–1072.
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McCormick, M. (1981). Ocean wave energy conversion, Wiley‐Interscience, New York, N.Y.
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McCormick, M. (1991). “A theoretical analysis of a self‐propelled backward bent duct wave energy conversion system.” MTS '91 Proc., Marine Technology Society, Nov.
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Copyright © 1992 ASCE.
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Published online: Jan 1, 1992
Published in print: Jan 1992
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