Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database
Vortex Induced Vibrations (VIV) cause major fatigue damage to long slender bodies and have been extensively studied in the past decades. While most of the past research focused on the cross flow direction, it was recently shown that the inline motion in the direction of the flow has a major impact o...
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ftmit:oai:dspace.mit.edu:1721.1/120781 2023-06-11T04:07:30+02:00 Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database Dahl, Jason M. Modarres-Sadeghi, Yahya Zheng, Haining Triantafyllou, Michael S Massachusetts Institute of Technology. Department of Mechanical Engineering Zheng, Haining Triantafyllou, Michael S 2019-01-04T19:10:12Z application/pdf http://hdl.handle.net/1721.1/120781 unknown ASME International http://dx.doi.org/10.1115/OMAE2014-24659 ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering 978-0-7918-4540-0 http://hdl.handle.net/1721.1/120781 Zheng, Haining, Jason M. Dahl, Yahya Modarres-Sadeghi, and Michael S. Triantafyllou. “Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database.” ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, 8-13 June, 2014, San Francisco, California, USA, ASME, 2014. © 2014 by ASME orcid:0000-0002-2927-6612 orcid:0000-0002-4960-7060 Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. ASME Article http://purl.org/eprint/type/ConferencePaper 2019 ftmit https://doi.org/10.1115/OMAE2014-24659 2023-05-29T08:18:46Z Vortex Induced Vibrations (VIV) cause major fatigue damage to long slender bodies and have been extensively studied in the past decades. While most of the past research focused on the cross flow direction, it was recently shown that the inline motion in the direction of the flow has a major impact on the fatigue life damage due to its higher frequency (second harmonic) and more importantly, its coupling with the crossflow motion, which triggers a third harmonic stress component in the cross flow direction. In this paper, the coupled inline-crossflow VIV problem is addressed from semiempirical modeling of fluid forces. Extensive fine grid forced inline-crossflow VIV experiments were designed and carried out in the MIT towing tank. An inline-crossflow VIV hydrodynamics coefficients database was newly constructed using the experimental results and it is expected to be useful for other semi empirical programs predicting coupled inlinecrossflow VIV in the field. Several key hydrodynamic coefficients in the database, including lift force coefficients, drag force coefficients and added mass coefficients, were systematically analyzed. The coefficients in the crossflow and the inline directions were found to have strong dependency on the phase between the inline and crossflow motions. BP-MIT Major Programs Article in Journal/Newspaper Arctic DSpace@MIT (Massachusetts Institute of Technology) Volume 2: CFD and VIV |
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DSpace@MIT (Massachusetts Institute of Technology) |
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ftmit |
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unknown |
description |
Vortex Induced Vibrations (VIV) cause major fatigue damage to long slender bodies and have been extensively studied in the past decades. While most of the past research focused on the cross flow direction, it was recently shown that the inline motion in the direction of the flow has a major impact on the fatigue life damage due to its higher frequency (second harmonic) and more importantly, its coupling with the crossflow motion, which triggers a third harmonic stress component in the cross flow direction. In this paper, the coupled inline-crossflow VIV problem is addressed from semiempirical modeling of fluid forces. Extensive fine grid forced inline-crossflow VIV experiments were designed and carried out in the MIT towing tank. An inline-crossflow VIV hydrodynamics coefficients database was newly constructed using the experimental results and it is expected to be useful for other semi empirical programs predicting coupled inlinecrossflow VIV in the field. Several key hydrodynamic coefficients in the database, including lift force coefficients, drag force coefficients and added mass coefficients, were systematically analyzed. The coefficients in the crossflow and the inline directions were found to have strong dependency on the phase between the inline and crossflow motions. BP-MIT Major Programs |
author2 |
Massachusetts Institute of Technology. Department of Mechanical Engineering Zheng, Haining Triantafyllou, Michael S |
format |
Article in Journal/Newspaper |
author |
Dahl, Jason M. Modarres-Sadeghi, Yahya Zheng, Haining Triantafyllou, Michael S |
spellingShingle |
Dahl, Jason M. Modarres-Sadeghi, Yahya Zheng, Haining Triantafyllou, Michael S Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
author_facet |
Dahl, Jason M. Modarres-Sadeghi, Yahya Zheng, Haining Triantafyllou, Michael S |
author_sort |
Dahl, Jason M. |
title |
Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
title_short |
Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
title_full |
Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
title_fullStr |
Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
title_full_unstemmed |
Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database |
title_sort |
coupled inline-cross flow viv hydrodynamic coefficients database |
publisher |
ASME International |
publishDate |
2019 |
url |
http://hdl.handle.net/1721.1/120781 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
ASME |
op_relation |
http://dx.doi.org/10.1115/OMAE2014-24659 ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering 978-0-7918-4540-0 http://hdl.handle.net/1721.1/120781 Zheng, Haining, Jason M. Dahl, Yahya Modarres-Sadeghi, and Michael S. Triantafyllou. “Coupled Inline-Cross Flow VIV Hydrodynamic Coefficients Database.” ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering, 8-13 June, 2014, San Francisco, California, USA, ASME, 2014. © 2014 by ASME orcid:0000-0002-2927-6612 orcid:0000-0002-4960-7060 |
op_rights |
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. |
op_doi |
https://doi.org/10.1115/OMAE2014-24659 |
container_title |
Volume 2: CFD and VIV |
_version_ |
1768380657663213568 |