Demonstration of a coupled floating offshore wind turbine analysis with high-fidelity methods

Leble, V. and Barakos, G. (2016) Demonstration of a coupled floating offshore wind turbine analysis with high-fidelity methods. Journal of Fluids and Structures, 62, pp. 272-293. (doi: 10.1016/j.jfluidstructs.2016.02.001)

Abstract

This paper presents results of numerical computations for floating off-shore wind turbines using, as an example, a machine of 10-MW rated power. The aerodynamic loads on the rotor are computed using the Helicopter Multi-Block flow solver developed at the University of Liverpool. The method solves the Navier–Stokes equations in integral form using the arbitrary Lagrangian–Eulerian formulation for time-dependent domains with moving boundaries. Hydrodynamic loads on the support platform are computed using the Smoothed Particle Hydrodynamics method, which is mesh-free and represents the water and floating structures by a set of discrete elements, referred to as particles. The motion of the floating offshore wind turbine is computed using a Multi-Body Dynamic Model of rigid bodies and frictionless joints. Mooring cables are modelled as a set of springs and dampers. All solvers were validated separately before coupling, and the results are presented in this paper. The importance of coupling is assessed and the loosely coupled algorithm used is described in detail alongside the obtained results.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George and Leble, Mr Vladimir
• Authors: Leble, V., and Barakos, G.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Journal of Fluids and Structures
• Publisher: Elsevier
• ISSN: 0889-9746
• ISSN (Online): 1095-8622
• Copyright Holders: Copyright © 2016 Elsevier
• First Published: First published in Journal of Fluids and Structures 62:272-293
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher.