Darrieus vertical axis wind turbine: Basic research methods

Jin, Xin; Zhao, Gang; Ke-jun, Gao; Ju, Wenbin

doi:10.1016/j.rser.2014.10.021

Cited by 124 publications

(48 citation statements)

References 57 publications

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“…Thus, models are crucial because they can be used for parameter optimization, performance prediction before fabrication, condition monitoring and fault detection and prediction [12][13][14]. Various models can be found for VAWT simulation in the literature [15][16][17][18][19][20][21][22]. These models can be broadly classified into four categories: momentum models, vortex models, cascade models and computational fluid dynamic (CFD) models.…”

Section: The Necessity Of a New Modeling Approach For Darrieus-type Vmentioning

confidence: 99%

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

et al. 2015

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Models are crucial in the engineering design process because they can be used for both the optimization of design parameters and the prediction of performance. Thus, models can significantly reduce design, development and optimization costs. This paper proposes a novel equivalent electrical model for Darrieus-type vertical axis wind turbines (DTVAWTs). The proposed model was built from the mechanical description given by the Paraschivoiu double-multiple streamtube model and is based on the analogy between mechanical and electrical circuits. This work addresses the physical concepts and theoretical formulations underpinning the development of the model. After highlighting the working principle of the DTVAWT, the step-by-step development of the model is presented. For assessment purposes, simulations of aerodynamic characteristics and those of corresponding electrical components are performed and compared.

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Section: The Necessity Of a New Modeling Approach For Darrieus-type Vmentioning

confidence: 99%

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

et al. 2015

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“…As an alternative to describe the flow around CFWTs, Computational Fluid Dynamics (CFD), a well-established tool in academic and industrial sectors [2][3][4][5][6], started to be used since the beginning of this century, first as simplified two-dimensional models of straight blade Darrieus turbines and, only recently, using full three-dimensional models. A review of the simplified approach strategies for CFD simulation of CFWTs was performed in [7].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of the Effect of Winglets on the Performance of a Straight Blade Darrieus Water Turbine

2018

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This study deals with the three-dimensional unsteady numerical simulation of the flow around a cross-flow vertical-axis water turbine (CFWT) of the Darrieus type. The influence of turbine design on its hydrodynamic characteristics and performance is investigated by means of a time-accurate Reynolds Averaged Navier Stokes (RANS) commercial solver. The flow unsteadiness is described using a transient rotor-stator model in connection with a sliding interface. A classical Darrieus straight blade turbine, based on the NACA0025 airfoil, has been modified adding winglets (symmetric and asymmetric designs) to the blades' tips with the objective of reducing the strength of the detached trailing vortices. The turbulent features of the flow have been modelled by using different turbulence models (k-ε Renormalization Group, standard Shear Stress Transport, transition Shear Stress Transport and Reynolds Stress Model). As a result, the predicted hydrodynamic performance of the turbine including winglets increases, independently of the employed turbulence model, being the improvement higher when a symmetric winglet design is considered. Moreover, visualization of skin friction lines pattern and their connection with vorticity isosurfaces, illustrating the flow detachment in the three blade configurations, has been carried out. Finally, a short discussion about the intermittency behavior along a turbine revolution is presented.

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“…The research topics of the airfoil design can be airfoil aerodynamic research and the effect of airfoil geometry on the performance. And the CFD has a great advantage in the study of airfoil aerodynamic [30]. In general, less computational time and acceptable accuracy are needed for the geometric design of the airfoil, especially for parametrical design of airfoil.…”

Section: Direct Design Approachmentioning

confidence: 99%

“…This is one of the reasons why the Darrieus rotor airfoil researches conducted before only involved in small types and numbers of airfoils [29]. 2015, Jin et al [30] reviewed the basic research approach for the Darrieus rotor. They added the CFD method and experiment approach.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A comprehensive review of the theoretical approaches for the airfoil design of lift-type vertical axis wind turbine

Chen

Yang

et al. 2015

Renewable and Sustainable Energy Reviews

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Darrieus vertical axis wind turbine: Basic research methods

Cited by 124 publications

References 57 publications

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

A New Approach for Modeling Darrieus-Type Vertical Axis Wind Turbine Rotors Using Electrical Equivalent Circuit Analogy: Basis of Theoretical Formulations and Model Development

Numerical Study of the Effect of Winglets on the Performance of a Straight Blade Darrieus Water Turbine

A comprehensive review of the theoretical approaches for the airfoil design of lift-type vertical axis wind turbine

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