Airfoil Vortex Induced Vibration suppression devices
Thesis (S.M. in Naval Architecture and Marine Engineering; and, S.M. in Ocean Systems Management)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, June 2007.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2008
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| Online Access: | http://hdl.handle.net/1721.1/39874 |
| _version_ | 1826206030221017088 |
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| author | Lee, Evan J. (Evan Joseph) |
| author2 | Michael Triantafyllou and Henry Marcus. |
| author_facet | Michael Triantafyllou and Henry Marcus. Lee, Evan J. (Evan Joseph) |
| author_sort | Lee, Evan J. (Evan Joseph) |
| collection | MIT |
| description | Thesis (S.M. in Naval Architecture and Marine Engineering; and, S.M. in Ocean Systems Management)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, June 2007. |
| first_indexed | 2024-09-23T13:22:54Z |
| format | Thesis |
| id | mit-1721.1/39874 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T13:22:54Z |
| publishDate | 2008 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/398742019-04-10T11:39:38Z Airfoil Vortex Induced Vibration suppression devices Airfoil VIV suppression devices Lee, Evan J. (Evan Joseph) Michael Triantafyllou and Henry Marcus. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M. in Naval Architecture and Marine Engineering; and, S.M. in Ocean Systems Management)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, June 2007. "May 2007." Includes bibliographical references (p. 51). Vortex Induced Vibrations (VIV) is a major concern of the offshore oil industry. This problem leads to fatigue failure in the marine risers and causes costly replacement of the risers. Appendages such as helical strakes have proven that VIV can be eliminated but at the cost of increased drag. Increased drag reduces the time that the riser can operate. This thesis looks at adding airfoils to cylinders to both eliminate VIV as well as reducing drag. Two sets of tests were performed at the MIT Towing Tank to determine the effectiveness of these airfoils. The first tests utilized a flexible to model a riser. The second set of tests used a rigid cylinder to better understand the dynamics of the system. The airfoils were able to achieve both goals when the airfoils are aligned with the flow. Future work needs to be completed to study the airfoils when they are not aligned with the flow. by Evan J. Lee. S.M.in Naval Architecture and Marine Engineering; and, S.M.in Ocean Systems Management 2008-01-10T15:49:55Z 2008-01-10T15:49:55Z 2007 Thesis http://hdl.handle.net/1721.1/39874 181644738 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 84 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Lee, Evan J. (Evan Joseph) Airfoil Vortex Induced Vibration suppression devices |
| title | Airfoil Vortex Induced Vibration suppression devices |
| title_full | Airfoil Vortex Induced Vibration suppression devices |
| title_fullStr | Airfoil Vortex Induced Vibration suppression devices |
| title_full_unstemmed | Airfoil Vortex Induced Vibration suppression devices |
| title_short | Airfoil Vortex Induced Vibration suppression devices |
| title_sort | airfoil vortex induced vibration suppression devices |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/39874 |
| work_keys_str_mv | AT leeevanjevanjoseph airfoilvortexinducedvibrationsuppressiondevices AT leeevanjevanjoseph airfoilvivsuppressiondevices |