Effect of second-order and fully nonlinear wave kinematics on a tension-leg-platform wind turbine in extreme wave conditions

Antonio Manuel Pegalajar Jurado, Michael Borg, Amy Robertson, Jason Jonkman, Henrik Bredmose

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

In this study, we assess the impact of different wave kinematics models on the dynamic response of a tension-leg-platform wind turbine. Aero-hydro-elastic simulations of the floating wind turbine are carried out employing linear, second-order, and fully nonlinear kinematics using the Morison equation for the hydrodynamic forcing. The wave kinematics are computed from either theoretical or measured signals of free-surface elevation. The numerical results from each model are compared to results from wave basin tests on a scaled prototype. The comparison shows that sub and superharmonic responses can be introduced by second-order and fully nonlinear wave kinematics. The response at the wave frequency range is better reproduced when kinematics are generated from the measured surface elevation. In the future, the numerical response may be further improved by replacing the global, constant damping coefficients in the model by a more detailed, customizable definition of the user-defined numerical damping.
Original languageEnglish
Title of host publicationASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering
Number of pages13
Volume10
PublisherAmerican Society of Mechanical Engineers
Publication date2017
Article numberV010T09A077
ISBN (Electronic)978-0-7918-5778-6
DOIs
Publication statusPublished - 2017
Event36th International Conference on Ocean, Offshore and Artic Engineering - Trondheim, Norway
Duration: 25 Jun 201730 Jun 2017
Conference number: 36

Conference

Conference36th International Conference on Ocean, Offshore and Artic Engineering
Number36
CountryNorway
CityTrondheim
Period25/06/201730/06/2017
SeriesProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - Omae

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