1. Title : Integrated CFD and hydrodynamic correction approach for load response analysis of floating offshore wind turbine

2. Journal : Ocean Engineering, 328, 2025

3. Authors : Ho-Seong Yang a , Ali Alkhabbaz b, Young-Ho Lee a,*

a Center for Offshore Wind & Green Hydrogen Ammonia Research, Korea Maritime and Ocean University, Busan, Republic of Korea

b Sustainable Energy Engineering Department, College of Engineering, University of Mosul, Mosul, 41002, Iraq

4. Abstract : 

This study investigates the load response of a 10 MW FOWT mounted on a semi-submersible platform using CFD

and hydrodynamic correction methods. The primary objective is to derive generalized correction coefficients

through free decay simulations and evaluate the load response under regular wave conditions. To achieve this,

three correction approaches, damping coefficient-based, drag coefficient-based, and a hybrid combining both

were compared. A newly designed 10 MW semi-submersible substructure connected by pontoons was employed

instead of the extensively studied OC4 DeepCwind model. The analysis revealed that the correction method

relying solely on damping coefficients failed to capture critical load responses under regular wave conditions and

demonstrated inaccuracies. In contrast, the hybrid correction method, which incorporates both drag and

damping coefficients, better captured viscous effects and improved damping accuracy, leading to more accurate

load response predictions for the 10 MW semi-submersible FOWT. These findings highlight the necessity of

considering both free decay results and real-world environmental conditions when determining correction coefficients

to enhance prediction accuracy. This study evaluates various correction approaches to enhance hydrodynamic

modeling accuracy of FOWTs.