Aeroservoelastic simulations for horizontal axis wind turbines

Prasad, Chandra Shekhar; Chen, Qiong Zhong; Brüls, Olivier; D'Ambrosio, Flavio; Dimitriadis, Grigorios

doi:10.1177/0957650916678725

Cited by 14 publications

(13 citation statements)

References 24 publications

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“…turbine concept. CAESAM, SAMCEF Field, and SAMCEF Mecano [96][97][98] are among the SAMTECH general tools used by S4WT. CAESAM is a general framework for integrating models and computational tools to perform transient, modal, and fatigue analysis of wind turbines.…”

Section: Samcefmentioning

confidence: 99%

A Survey of Numerical Simulation Tools for Offshore Wind Turbine Systems

Fadaei,

Afagh,

Langlois

2023

Preprint

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Design, analysis, manufacture, and deployment of offshore wind turbines mounted on a floating base is a novel industry that is attracting interest from both academia and industry. In an effort to comprehend the sophisticated aerodynamics and hydrodynamics of the floating offshore wind turbines (FOWTs), numerical and physical modelling of these complex systems began to develop with their appearance. The strong coupling between the aerodynamics of the rotor-nacelle assembly (RNA) and the hydrodynamics of the floating platform makes modelling FOWTs a challenging task. However, the scaling mismatch between Froude scaling and Reynolds scaling made it more difficult to physically test scaled-down prototypes of FOWTs, whether in a wind tunnel or an ocean basin. In this regard, developing high-fidelity numerical modelling that is both cost-effective and accurate has been receiving increased attention as a potential replacement for or complement to physical testing. However, numerical engineering tools, which are frequently used in the offshore oil and gas industry, are known as mid-fidelity to low-fidelity tools and lack the degree of accuracy that is desirable for FOWTs. In recent years, a variety of numerical tools have been established or developed to uncover the complex nature of the dynamics of FOWTs. This study aims to provide a comprehensive survey of numerical tools available for simulating FOWTs, with a particular emphasis on horizontal axis wind turbines (HAWTs), assessing their capabilities and limitations.

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Section: Samcefmentioning

confidence: 99%

A Survey of Numerical Simulation Tools for Offshore Wind Turbine Systems

Fadaei,

Afagh,

Langlois

2023

Preprint

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“…In addition, an optimum foundation is required to fix the wind turbine to soil or ground as shown in Figure 4(c). A well-chosen foundation permits a higher more important production created by the turbine (Prasad et al, 2017). The foundation has to fit the tower dimension with an adequate stiffness in order to enhance the turbine tower–foundation system natural frequencies respecting experimental limits.…”

Section: Numerical Model Establishingmentioning

confidence: 99%

Finite volume free vibration analysis of a new aerodynamic styling wind turbine

et al. 2018

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Due to the short life cycles of large-scale wind turbines and difficulties in getting permission for farms installations, micro-scale turbines have become interesting sustainable solutions to product energy. However, micro-size turbines have to be able to generate balanced powers while ensuring maximum life services under unpredictable environment conditions. Hence, designers must mainly investigate the dynamic characteristics of turbine tower-foundation systems in order to protect the structural security and stability of the system under vibration constraints. In this framework, this article aims to analyze the vibration behavior of modern micro-turbines. A new aerodynamic styling wind turbine, which is Rutland 504 six-bladed commercial turbine, is selected in this study in order to highlight the impacts of extra components like ring, nose, and tail on the vibrational properties. Accordingly, a three-dimensional model of the turbine tower-foundation system was created basing on finite volume method. The newest version of ANSYS academic software is used. Dynamic properties of the numerical model were determined by solving equations of motion. After identifying mode shapes and natural frequencies, experimental modal testing was applied to validate the numerical model. Then, deformations and vibrations of different components of the system were studied under free vibration conditions. The components of the system most sensitive to vibrate were determined. Moreover, the stress distributions were discussed in order to identify the components most exposed to fatigue fractures.

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“…3. More details about aerodynamic and structural grid mapping and co-simulation is presented in the [15].…”

Section: Fluid Structure Interaction (Fsi) Coupling and Co-simulationmentioning

confidence: 99%

Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model

Prasad

Pešek

2018

MATEC Web Conf.

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In the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose. The aerodynamics damping (AD) is estimated using Traveling wave mode (TWM) method. Flow field is modeled using Panel method. For the structural part ROM non-linear beam element method (BEM) based FEM structural solver is used. Partitioned based ( loose) coupling approach is adopted to perform aeroelastic (flutter) cosimulation. Both 2D cascade flow and 3D cascade are modeled.The estimated stability parameters are compared with experimental data. Moreover, present ROAM shows significant reduction in computational time.

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Aeroservoelastic simulations for horizontal axis wind turbines

Cited by 14 publications

References 24 publications

A Survey of Numerical Simulation Tools for Offshore Wind Turbine Systems

A Survey of Numerical Simulation Tools for Offshore Wind Turbine Systems

Finite volume free vibration analysis of a new aerodynamic styling wind turbine

Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model

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