Towards credible CFD simulations for floating offshore wind turbines

S Burmester, G Vaz, O el Moctar - Ocean Engineering, 2020 - Elsevier
The credibility in the results needs to be demonstrated in order to be able to use
computational fluid dynamics (CFD) as an engineering tool. This may be obtained by …

Large-eddy simulations of the vortex-induced vibration of a low mass ratio two-degree-of-freedom circular cylinder at subcritical Reynolds numbers

D Pastrana, JC Cajas, O Lehmkuhl, I Rodríguez… - Computers & …, 2018 - Elsevier
The vortex induced vibration phenomenon of a low mass ratio (m*= 2.6) two-degree-of-
freedom circular cylinder at subcritical Reynolds numbers (R e= 3900, 5300, 11,000) has …

Investigation of a semi-submersible floating wind turbine in surge decay using CFD

S Burmester, G Vaz, S Gueydon… - Ship Technology …, 2020 - Taylor & Francis
The hydrodynamic damping estimation of the surge motion and the flow characteristics of a
moored semi-submersible floating offshore wind turbine is the focus of this paper. The …

Effects of the Reynolds number and structural damping on vortex-induced vibrations of elastically-mounted rigid cylinder

FAC Martins, JPJ Avila - International Journal of Mechanical Sciences, 2019 - Elsevier
In this work, analyses of the damping ratio and turbulence effects on three-dimensional
vortex-induced vibrations of a two degrees-of-freedom elastically mounted rigid cylinder are …

Analytical and numerical modelling of tandem oscillating foils propulsors

DBS Lopes, G Vaz, JACF de Campos, A Sarmento - Ocean Engineering, 2023 - Elsevier
The present work investigates theoretical and numerical methods to model oscillating
hydrofoils, in single and tandem arrangement. The first part of this work presents a semi …

CFD simulation of semi-submersible floating offshore wind turbine under pitch decay motion

Y Wang, HC Chen, G Vaz… - International …, 2019 - asmedigitalcollection.asme.org
The application of a computational fluid dynamics (CFD) code to simulate the response of a
semi-submersible floating wind turbine under pitch decay motion was investigated in this …

Modelling of oscillating foil propulsors in waves

DBS Lopes, G Vaz, JACF de Campos, A Sarmento - Ocean Engineering, 2023 - Elsevier
This study addresses the possibility of extracting energy from gravity waves for marine
propulsion by an oscillating hydrofoil. Moreover, it investigates theoretical and numerical …

Flow-induced vibration of a locally rough cylinder with two symmetrical strips attached on its surface: Effect of the location and shape of strips

H Zhu, Y Gao, T Zhou - Applied Ocean Research, 2018 - Elsevier
The flow induced vibration of a circular cylinder selectively roughened with two strips is
numerically investigated using a two-way fluid-structure interaction (FSI) approach at high …

Three-dimensional CFD analysis of damping effects on vortex-induced vibrations of 2DOF elastically-mounted circular cylinders

FAC Martins, JPJ Avila - Marine Structures, 2019 - Elsevier
This paper presents results for three-dimensional computational fluid dynamics analysis for
one and two degrees-of-freedom (DOF) elastically mounted rigid cylinders with different …

High-fidelity modelling of floating offshore wind turbine platforms

S Burmester, G Vaz, O el Moctar… - International …, 2020 - asmedigitalcollection.asme.org
There are already several examples of commercially operating floating offshore wind
turbines (FOWTs) delivering electricity to the grid. These devices operate usually in harsh …