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Velocity characteristics in the wake of an oscillating cylinder

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dc.contributor.advisor Michael S. Triantafyllou. en_US Davis, Joshua Tolford, 1978- en_US
dc.contributor.other Massachusetts Institute of Technology. Dept. of Ocean Engineering. en_US 2005-05-19T14:37:30Z 2005-05-19T14:37:30Z 2001 en_US 2001 en_US
dc.description Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2001. en_US
dc.description Includes bibliographical references (leaves 100-102). en_US
dc.description This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. en_US
dc.description.abstract This thesis describes the results of over 2000 experimental runs conduced at the MIT Ship Model Testing Tank. A rake of constant temperature anemometers is employed to study the spanwise velocity correlation and the vertical velocity profile downstream of a vibrating cylinder. Experiments involve either free vibration implemented through a force feedback system or forced sinusoidal motion. All experiments are conducted at a towing speed within the subcritical flow regime at Re ~ 3 x 104. This thesis explores the connection between these downstream velocity properties and the vortex-induced vibrations of the cylinder. In addition to downstream velocities, experimental data include lift and drag forces and cylinder displacement. Vortices are found to be correlated along the entire length of the test cylinder only within a specific band of motion amplitudes and frequencies. Overall, forced oscillations produce vortices that are more organized and well correlated than those shed from a freely vibrating cylinder. en_US
dc.description.statementofresponsibility by Joshua Tolford Davis. en_US
dc.format.extent 102 leaves en_US
dc.format.extent 8283176 bytes
dc.format.extent 8282888 bytes
dc.format.mimetype application/pdf
dc.format.mimetype application/pdf
dc.language.iso eng en_US
dc.publisher Massachusetts Institute of Technology en_US
dc.rights M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. en_US
dc.subject Ocean Engineering. en_US
dc.title Velocity characteristics in the wake of an oscillating cylinder en_US
dc.type Thesis en_US S.M. en_US
dc.contributor.department Massachusetts Institute of Technology. Dept. of Ocean Engineering. en_US
dc.identifier.oclc 50406166 en_US

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