Interaction of cylinders In proximity under flow-induced vibration
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2014
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| Online Access: | http://hdl.handle.net/1721.1/92126 |
| _version_ | 1826204309532966912 |
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| author | Thekkoodan, Dilip Joy |
| author2 | Michael S. Triantafyllou and Rémi Bourguet. |
| author_facet | Michael S. Triantafyllou and Rémi Bourguet. Thekkoodan, Dilip Joy |
| author_sort | Thekkoodan, Dilip Joy |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014. |
| first_indexed | 2024-09-23T12:52:27Z |
| format | Thesis |
| id | mit-1721.1/92126 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T12:52:27Z |
| publishDate | 2014 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/921262019-04-10T17:42:07Z Interaction of cylinders In proximity under flow-induced vibration Thekkoodan, Dilip Joy Michael S. Triantafyllou and Rémi Bourguet. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014. Cataloged from PDF version of thesis. Includes bibliographical references (pages 57-59). This study examines the influence of a stationary cylinder that is placed in proximity to a flexibly mounted cylinder in the side-by-side arrangement. The problem is investigated with an immersed-boundary formulation of a spectral/hp element based (Nektar-SPM) fluid solver. The numerical method and its implementation is validated with benchmark test cases of the flow past an isolated cylinder in both the stationary and flexibly mounted configurations. The study examines a parametric space spanning 6 center-to-center spacing configurations in the range 1.5D-4D and 13 equispaced reduced velocities in the range 3.0-9.0. The simulations are performed in two-dimensional space and the Reynolds number is held at 100. The response characteristics of the moving cylinder are classified into regimes based on the shape of the response curve and the variation of the r.m.s. lift coefficient. It is shown that the moving cylinder influences the lift and drag force characteristics on the stationary cylinder and the frequency composition in the wake. A detailed look at the frequencies and the relative strengths of the frequencies indicates a diminishing influence of the moving cylinder on the stationary cylinder, both with increasing separation and smaller amplitudes. By examining the wake patterns and monitoring the frequencies in the wake of each cylinder, the interference level is qualified and explained to be the basis of the different families of response. by Dilip Joy Thekkoodan. S.M. 2014-12-08T18:50:42Z 2014-12-08T18:50:42Z 2014 2014 Thesis http://hdl.handle.net/1721.1/92126 895903665 eng 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. http://dspace.mit.edu/handle/1721.1/7582 73 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Thekkoodan, Dilip Joy Interaction of cylinders In proximity under flow-induced vibration |
| title | Interaction of cylinders In proximity under flow-induced vibration |
| title_full | Interaction of cylinders In proximity under flow-induced vibration |
| title_fullStr | Interaction of cylinders In proximity under flow-induced vibration |
| title_full_unstemmed | Interaction of cylinders In proximity under flow-induced vibration |
| title_short | Interaction of cylinders In proximity under flow-induced vibration |
| title_sort | interaction of cylinders in proximity under flow induced vibration |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/92126 |
| work_keys_str_mv | AT thekkoodandilipjoy interactionofcylindersinproximityunderflowinducedvibration |