Short‐Crested Wave‐Current Forces on Composite Bucket Foundation for an Offshore Wind Turbine

Wang, Piguang; Zhao, Mi

doi:10.1155/2019/5932742

Cited by 10 publications

(6 citation statements)

References 32 publications

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“…As discussed by (Hedges et al, 1993), although the diffraction theory is a practical approach to model wind generated waves, these waves are modelled more realistic with Short-crested waves. Application of short crested waves are the matter of interest for many researchers (Wang et al, 2019), (Wei and Dalrymple, 2017), (Vasarmidis et al, 2019).…”

Section: Short-crested Wavesmentioning

confidence: 99%

An investigation of the applicability of SPIV for the analysis of the dynamics of floating offshore wind platforms

Belvasi

Judge

Murphy

et al. 2022

Preprint

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Abstract. There is a need for new numerical tools to capture the physics of floating wind platforms more accurately to refine engineering designs and reduce costs. The conventional measurements apparatus in tank tests, including wave probs, velocity and current profiler, as well as doppler sensors, are unable to give a full 3D picture of velocity, pressure, and turbulence. In tank testing, the use of the underwater stereoscopic PIV method to fully characterise the 3D flow field around floating platforms can provide a rich source of validation data and overcome some of the limitations associated with more classical measurement techniques. This optical technique can be used to accurately measure the random and chaotic structure of turbulent flows around the floater. Moreover, the main characteristics of turbulence of the flow around the floater, such as rotationality, diffusivity, irregularity, as well as dissipation, can be extracted and studied. The underwater S-PIV method has been widely used for marine and offshore applications, including studies on ship and propeller wakes and tidal stream turbines; however, to date, this technology has not seen widespread use for the hydrodynamic study of floating offshore wind turbines. Therefore, in the current study, the key considerations for using S-PIV for this purpose are discussed; meanwhile, the related studies in the field of quantitative flow measurements are reviewed.

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Section: Short-crested Wavesmentioning

confidence: 99%

An investigation of the applicability of SPIV for the analysis of the dynamics of floating offshore wind platforms

Belvasi

Judge

Murphy

et al. 2022

Preprint

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“…As discussed in [89], although diffraction theory is a practical approach to modelling windgenerated waves, these waves are modelled more realistically with short-crested waves. The application of short-crested waves has been a matter of interest for many researchers to date [90][91][92].…”

Section: Short-crested Wavesmentioning

confidence: 99%

Analysis of Floating Offshore Wind Platform Hydrodynamics Using Underwater SPIV: A Review

et al. 2022

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There is a need for new numerical tools to capture the physics of floating offshore wind turbines (FOWTs) more accurately to refine engineering designs and reduce costs. The conventional measurement apparatuses in tank tests, including wave probes, velocity and current profilers, and Doppler sensors, are unable to provide a full 3D picture of velocity, pressure, turbulence, and vorticity profile. In tank tests, use of the underwater stereoscopic particle image velocimetry (SPIV) method to fully characterise the 3D flow field around floating wind platforms can overcome some of the limitations associated with classical measurement techniques and provide a rich source of validation data to advance high-fidelity numerical tools. The underwater SPIV method has been widely used for marine and offshore applications, including ship and propeller wakes, wave dynamics, and tidal stream turbines; however, to date, this technology has not seen widespread use for the hydrodynamic study of FOWTs. This paper provides a critical review of the suitability of underwater SPIV for analysing the hydrodynamics of FOWTs, reviews the challenges of using the method for FOWT tank test applications, and discusses the contributions the method can make to mitigating current research gaps in FOWT tank tests.

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“…The short crested waves along with current produce different results than the long-crested waves with the current. In the analytical study of Wang et al, [2] effects of the current having uniform velocity were studied on the short crested wave. The wave parameters on which the effect was studied were wave frequency, wave run up, wave force and inertia.…”

Section: Previous Studiesmentioning

confidence: 99%

“…Initially, studies were performed in laboratory-based wave tanks but after the computational evolution, the experimental tanks have been replaced by Computational Fluid Dynamics (CFD) numerical wave tanks involving computational costs only. The combined wave-current interaction based on Navier-Stokes equations has been studied by various researchers such as Olabarrita et al, [1,2], Kim et al, [3], Zhang et al, [4], Liu et al, [5], Christine et al, [6], Silva et al, [7] and Azmi et al, [8]. Most of these studies are done under Numerical wave tank simulations with different CFD solver techniques.…”

Section: Introductionmentioning

confidence: 99%

Some Recent Fluid-Structure Interaction Approaches for the Wave Current Behaviour With Offshore Structures

Ahmed

Nizamani

Nakayama

et al. 2020

CFDL

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The effects of the surface waves generated by the wind have a significant effect on the currents. A wave current coupled model plays an important role in the design offshore structures. The interaction between fluids such as incompressible ocean waves and current and offshore structures is significant with many real-time applications in offshore engineering. These coupled models can be applied to Offshore Floating Production Operating and offloading (FPSO), Wind or current turbines and offshore pipelines. The complex issues related to the design are analyzed by using Computational Fluid Dynamics, which requires an investigation of the multiphase flow between wave and current and the structure which is considered restrictive due to the computational cost. If viscous effects are neglected then the single-phase flow models have been recommended, where wave-current interaction have been modelled successfully. Models have been developed where velocities and pressure are computed and the results can be verified with the experimental results available in the literature. In this study the existing numerical methods, mesh types are discussed along with their coupling methods. Here single-phase and multiphase models with small and medium movement are reviewed and their applications are highlighted. Commercial CFD code ANSYS Fluent has been found most reliable and easy to use tool for the analysis of fluid flow interacting with offshore structures near the free surface. It can successfully be used for determination of fluid dynamics of offshore environments installed complex multi-component structures. Dynamic mesh facility is more useful for multiphase modelling of floating structures.

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Short‐Crested Wave‐Current Forces on Composite Bucket Foundation for an Offshore Wind Turbine

Cited by 10 publications

References 32 publications

An investigation of the applicability of SPIV for the analysis of the dynamics of floating offshore wind platforms

An investigation of the applicability of SPIV for the analysis of the dynamics of floating offshore wind platforms

Analysis of Floating Offshore Wind Platform Hydrodynamics Using Underwater SPIV: A Review

Some Recent Fluid-Structure Interaction Approaches for the Wave Current Behaviour With Offshore Structures

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