Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System
Currently, a number of wave energy converters are being analyzed by means of numerical models in order to predict the electrical power generation under given wave conditions. A common characteristic of this procedure is to integrate the loadings from the hydrodynamics, power take-off and mooring sys...
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American Society of Mechanical Engineers
2012
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ftalborgunivpubl:oai:pure.atira.dk:publications/d9f52af3-436b-4187-a194-f270b0ee563e 2024-05-19T07:33:01+00:00 Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System Zurkinden, Andrew Stephen Kramer, Morten Sichani, Mahdi Teimouri Alves, Marco 2012 https://vbn.aau.dk/da/publications/d9f52af3-436b-4187-a194-f270b0ee563e http://www.scopus.com/inward/record.url?scp=84884468686&partnerID=8YFLogxK eng eng American Society of Mechanical Engineers https://vbn.aau.dk/da/publications/d9f52af3-436b-4187-a194-f270b0ee563e info:eu-repo/semantics/closedAccess Zurkinden , A S , Kramer , M , Sichani , M T & Alves , M 2012 , Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering : OMAE2012 . American Society of Mechanical Engineers , Rio de Janeiro , 31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) , Brazil , 01/07/2012 . Numerical Methods Marine Structures Analysis Wave Energy Converters contributionToPeriodical 2012 ftalborgunivpubl 2024-04-29T00:29:18Z Currently, a number of wave energy converters are being analyzed by means of numerical models in order to predict the electrical power generation under given wave conditions. A common characteristic of this procedure is to integrate the loadings from the hydrodynamics, power take-off and mooring systems into a central wave to wire model. The power production then depends on the control strategy which is applied to the device. The objective of this paper is to develop numerical methods for motion analysis of marine structures with a special emphasis on wave energy converters. Two different time domain models are applied to a point absorber system working in pitch mode only. The device is similar to the well-known Wavestar prototype located in the Danish North Sea. A laboratory model has been set up in order to validate the numerical simulations of the dynamics. Wave Excitation force and the response of the device for regular and irregular waves were measured. Good correspondence is found between the numerical and the physical model for relatively mild wave conditions. For higher waves the numerical model seems to underestimate the response of the device due to its linear fluidstructure interaction assumption and linearized equation of motion. The region over which the numerical model is valid will be presented in terms of non-dimensional parameters describing the different wave states. Article in Journal/Newspaper Arctic Aalborg University's Research Portal |
institution |
Open Polar |
collection |
Aalborg University's Research Portal |
op_collection_id |
ftalborgunivpubl |
language |
English |
topic |
Numerical Methods Marine Structures Analysis Wave Energy Converters |
spellingShingle |
Numerical Methods Marine Structures Analysis Wave Energy Converters Zurkinden, Andrew Stephen Kramer, Morten Sichani, Mahdi Teimouri Alves, Marco Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
topic_facet |
Numerical Methods Marine Structures Analysis Wave Energy Converters |
description |
Currently, a number of wave energy converters are being analyzed by means of numerical models in order to predict the electrical power generation under given wave conditions. A common characteristic of this procedure is to integrate the loadings from the hydrodynamics, power take-off and mooring systems into a central wave to wire model. The power production then depends on the control strategy which is applied to the device. The objective of this paper is to develop numerical methods for motion analysis of marine structures with a special emphasis on wave energy converters. Two different time domain models are applied to a point absorber system working in pitch mode only. The device is similar to the well-known Wavestar prototype located in the Danish North Sea. A laboratory model has been set up in order to validate the numerical simulations of the dynamics. Wave Excitation force and the response of the device for regular and irregular waves were measured. Good correspondence is found between the numerical and the physical model for relatively mild wave conditions. For higher waves the numerical model seems to underestimate the response of the device due to its linear fluidstructure interaction assumption and linearized equation of motion. The region over which the numerical model is valid will be presented in terms of non-dimensional parameters describing the different wave states. |
format |
Article in Journal/Newspaper |
author |
Zurkinden, Andrew Stephen Kramer, Morten Sichani, Mahdi Teimouri Alves, Marco |
author_facet |
Zurkinden, Andrew Stephen Kramer, Morten Sichani, Mahdi Teimouri Alves, Marco |
author_sort |
Zurkinden, Andrew Stephen |
title |
Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
title_short |
Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
title_full |
Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
title_fullStr |
Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
title_full_unstemmed |
Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System |
title_sort |
comparison between numerical modeling and experimental testing of a point absorber wec using linear power take-off system |
publisher |
American Society of Mechanical Engineers |
publishDate |
2012 |
url |
https://vbn.aau.dk/da/publications/d9f52af3-436b-4187-a194-f270b0ee563e http://www.scopus.com/inward/record.url?scp=84884468686&partnerID=8YFLogxK |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Zurkinden , A S , Kramer , M , Sichani , M T & Alves , M 2012 , Comparison Between Numerical Modeling and Experimental Testing of a Point Absorber WEC Using Linear Power Take-Off System . in Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering : OMAE2012 . American Society of Mechanical Engineers , Rio de Janeiro , 31st International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2012) , Brazil , 01/07/2012 . |
op_relation |
https://vbn.aau.dk/da/publications/d9f52af3-436b-4187-a194-f270b0ee563e |
op_rights |
info:eu-repo/semantics/closedAccess |
_version_ |
1799471193247449088 |