Aero-Hydro-Elastic Simulation of a Semi-Submersible Floating Wind Turbine
- 24 March 2014
- journal article
- research article
- Published by ASME International in Journal of Offshore Mechanics and Arctic Engineering
- Vol. 136 (2), 020908
- https://doi.org/10.1115/1.4025031
Abstract
This paper presents an aero-hydro-elastic model of a semi-submersible floating wind turbine. A specific attention is drawn to hydrodynamic modeling options and their effect on the dynamic response of the platform. The NREL 5 MW reference wind turbine mounted on the historical concept of semi-submersible platform Dutch tri-floater is considered. A specific hydrodynamic model of loads on a semi-submersible platform is used within the wind turbine design code FAST from NREL. This hydrodynamic model includes nonlinear hydrostatic and Froude-Krylov forces, diffraction/radiation forces obtained from linear potential theory, and Morison forces to take into account viscous effects on the braces and damping plates. The effect of the different hydrodynamic modeling options is investigated. As one could have expected, it is found that the effect of viscous drag on braces, and nonlinear Froude-Krylov loads, becomes larger with increasing wave height. Their effect remains of small order. Simulations also are run with directional waves, it is found that wave directionality induces larger transverse motions.Keywords
This publication has 8 references indexed in Scilit:
- Global Analysis of a Floating Wind Turbine Using an Aero-Hydro-Elastic Model: Part 1—Code Development and Case StudyPublished by ASME International ,2011
- Floating Offshore Wind Energy — A Review of the Current Status and an Assessment of the ProspectsWind Engineering, 2010
- Dynamics of offshore floating wind turbines—model development and verificationWind Energy, 2009
- WindFloat: A Floating Foundation for Offshore Wind Turbines—Part II: Hydrodynamics AnalysisPublished by ASME International ,2009
- A Non-Linear Potential Model to Predict Large-Amplitudes-Motions: Application to the SEAREV Wave Energy ConverterPublished by ASME International ,2007
- Coupled Dynamic Modeling of Floating Wind Turbine SystemsPublished by Society of Petroleum Engineers (SPE) ,2006
- Experimental and Numerical Investigation of the Stabilizing Effects of a Water-Entrapment Plate on a Deepwater Minimal Floating PlatformPublished by ASME International ,2005
- Heave motion suppression of a Spar with a heave plateOcean Engineering, 2004