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Title: Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint

Abstract

Offshore wind turbines are designed and analyzed using comprehensive simulation codes that account for the coupled dynamics of the wind inflow, aerodynamics, elasticity, and controls of the turbine, along with the incident waves, sea current, hydrodynamics, and foundation dynamics of the support structure. This paper describes the latest findings of the code-to-code verification activities of the Offshore Code Comparison Collaboration, which operates under Subtask 2 of the International Energy Agency Wind Task 23. In the latest phase of the project, participants used an assortment of codes to model the coupled dynamic response of a 5-MW wind turbine installed on a floating spar buoy in 320 m of water. Code predictions were compared from load-case simulations selected to test different model features. The comparisons have resulted in a greater understanding of offshore floating wind turbine dynamics and modeling techniques, and better knowledge of the validity of various approximations. The lessons learned from this exercise have improved the participants' codes, thus improving the standard of offshore wind turbine modeling.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
979463
Report Number(s):
NREL/CP-500-47534
TRN: US201010%%693
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: To be presented at the European Wind Energy Conference (EWEC), 20-23 April 2010, Warsaw, Poland
Country of Publication:
United States
Language:
English
Subject:
17 WIND ENERGY; AERODYNAMICS; APPROXIMATIONS; BUOYS; ELASTICITY; HYDRODYNAMICS; INTERNATIONAL ENERGY AGENCY; SEAS; SIMULATION; VERIFICATION; WATER; WIND TURBINES; OFFSHORE WIND TURBINE; FLOATING; SPAR BUOY; AERO-HYDRO-SERVO-ELASTIC ANALYSIS; CODE VERIFICATION; Wind Energy

Citation Formats

Jonkman, J., Larsen, T., Hansen, A., Nygaard, T., Maus, K., Karimirad, M., Gao, Z., Moan, T., and Fylling, I. Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint. United States: N. p., 2010. Web.
Jonkman, J., Larsen, T., Hansen, A., Nygaard, T., Maus, K., Karimirad, M., Gao, Z., Moan, T., & Fylling, I. Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint. United States.
Jonkman, J., Larsen, T., Hansen, A., Nygaard, T., Maus, K., Karimirad, M., Gao, Z., Moan, T., and Fylling, I. Thu . "Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint". United States. https://www.osti.gov/servlets/purl/979463.
@article{osti_979463,
title = {Offshore Code Comparison Collaboration within IEA Wind Task 23: Phase IV Results Regarding Floating Wind Turbine Modeling; Preprint},
author = {Jonkman, J. and Larsen, T. and Hansen, A. and Nygaard, T. and Maus, K. and Karimirad, M. and Gao, Z. and Moan, T. and Fylling, I.},
abstractNote = {Offshore wind turbines are designed and analyzed using comprehensive simulation codes that account for the coupled dynamics of the wind inflow, aerodynamics, elasticity, and controls of the turbine, along with the incident waves, sea current, hydrodynamics, and foundation dynamics of the support structure. This paper describes the latest findings of the code-to-code verification activities of the Offshore Code Comparison Collaboration, which operates under Subtask 2 of the International Energy Agency Wind Task 23. In the latest phase of the project, participants used an assortment of codes to model the coupled dynamic response of a 5-MW wind turbine installed on a floating spar buoy in 320 m of water. Code predictions were compared from load-case simulations selected to test different model features. The comparisons have resulted in a greater understanding of offshore floating wind turbine dynamics and modeling techniques, and better knowledge of the validity of various approximations. The lessons learned from this exercise have improved the participants' codes, thus improving the standard of offshore wind turbine modeling.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {4}
}

Conference:
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