2026-09-19T16:02:22Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/335862022-01-13T07:54:39Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Michael S. Triantafyllou.
Wiggins, Andrew (Andrew Dale)
Massachusetts Institute of Technology. Dept. of Ocean Engineering.
Massachusetts Institute of Technology. Department of Ocean Engineering
2006-07-31T15:14:53Z
2006-07-31T15:14:53Z
2005
2005
http://hdl.handle.net/1721.1/33586
63761771
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2005.
Includes bibliographical references (p. 99-101).
A series of Multi-Frequency cable vibration experiments at Reynolds number 7600 were carried out at the MIT Tow Tank using the Virtual Cable Towing Apparatus (VCTA). Motions observed in a Direct Numerical Simulation of a flexible cylinder in a shear current were imposed on the VCTA and force measurements taken. Results showed a good agreement between the RMS lift coefficients of experiment and simulation. Complex Demodulation Analysis revealed significant lift force phase modulations. This analysis also showed that to a large extent the 3-dimensional behavior of the DNS was captured by the 2-d experiment in regions of low inflow, and to a lesser extent in regions of high inflow. Applications of results to future vortex induced vibration force models are discussed.
by Andrew Wiggins.
S.M.
101 p.
4593779 bytes
4597935 bytes
application/pdf
application/pdf
eng
Massachusetts Institute of Technology
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http://dspace.mit.edu/handle/1721.1/7582
Ocean Engineering.
Multi-frequency cable vibration experiments
Thesis
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Publication
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<Abstract>A series of Multi-Frequency cable vibration experiments at Reynolds number 7600 were carried out at the MIT Tow Tank using the Virtual Cable Towing Apparatus (VCTA). Motions observed in a Direct Numerical Simulation of a flexible cylinder in a shear current were imposed on the VCTA and force measurements taken. Results showed a good agreement between the RMS lift coefficients of experiment and simulation. Complex Demodulation Analysis revealed significant lift force phase modulations. This analysis also showed that to a large extent the 3-dimensional behavior of the DNS was captured by the 2-d experiment in regions of low inflow, and to a lesser extent in regions of high inflow. Applications of results to future vortex induced vibration force models are discussed.</Abstract>
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