City Research Online

Abstract

The paper presents a numerical investigation on a floating offshore wind turbine (FOWT) in a complex marine environment consisting of winds and waves. It takes account of the aerodynamics, hydrodynamics of FOWT system and their interactions simultaneously using a hybrid model, qaleFoam, which combines a fully nonlinear potential (FNPT) solver with a two-phase Navier-Stokes (NS) solver using a domain decomposition approach. The qaleFoam is validated by comparing its predictions with experimental and numerical results available in the public domain, and then is applied to model the FOWT in a unidirectional focused wave accompanying with a uniform wind. The results reveal a significant interaction between the aerodynamic and hydrodynamic responses of the FOWT in such condition. Moreover, it demonstrates that the most extreme response of the FOWT may not occur at the highest wave. This implies the importance of identifying the survival condition of the FOWT in normal operational sea state.

Publication Type:	Article
Additional Information:	Copyright © by The International Society of Offshore and Polar Engineers, 2022.
Publisher Keywords:	FOWT, focused wave, coupled effect, hybrid model, qaleFOAM
Subjects:	Q Science > QC Physics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery
Departments:	School of Science & Technology > Engineering
SWORD Depositor:	Symplectic Administrator

Export

Downloads