Design and aerodynamic performance of new Floating H-Darrieus Vertical Axis Wind Turbines

Dabachi, Mohamed Amine; Rahmouni, Abdellatif; Bouksour, Otmane

doi:10.1016/j.matpr.2020.04.347

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…The NACA 2408 profile was selected, which has a maximum lift over drag ratio (Cl/Cd) of 37.4 [21]. The main objective of H-Darireus turbine is decrease the negative torque of the incoming blade [22][23][24] in GVT case, the flow is rotational inside the chamber. The discretization of volume control was carried out in Ansys ICEM® modules for having higher quality metrics in the meshes [25], supervising as a significant dimension the minimum orthogonal quality, which varies between zero and one, being one the value is associated with the best quality of the mesh [26][27][28] the aspect ratio and the minimum determinant 3x3.…”

Section: Methodsmentioning

confidence: 99%

Numerical Study of H-Darrieus Turbine as a Rotor for Gravitational Vortex Turbine

Rio

Sánchez

Villa

et al. 2022

CFDL

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The main objetive of this study is to compare numerically the torque generated at 50, 75, 100, and 125 rpm by H-Darrieus turbine as a rotor for Gravitational Vortex Turbine. The rotational flow into the gravitational vortex turbine tank helped to decrease the negative torque in H-Darrieus rotor. The study was developed in ANSYS® CFX, where the model was configured at constant operating conditions. The highest torque was 0.117 Nm at 50 rpm, and the torque decreased with increasing rpm. The H-Darrieus works with increasing lift force, however, the rotor inside the Gravitational Vortex Turbine interacts with drag force.

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Section: Methodsmentioning

confidence: 99%

Numerical Study of H-Darrieus Turbine as a Rotor for Gravitational Vortex Turbine

Rio

Sánchez

Villa

et al. 2022

CFDL

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“…Figure 1 shows the 3D design of Darrieus-type floating wind turbines with three-stage rotors under extreme wind loading on each blade. The purpose of this paper was to study the durability of Darrieus-type floating wind turbine blades with three-stage rotors under extreme load conditions [23,24]. Considering the applied stresses, perfect long-term durability is required.…”

Section: Floating Darrieus-type Wind Turbine With Three-stage Rotorsmentioning

confidence: 99%

“…It can be observed that the simulation results of the Abaqus code show good agreement with the analytical and numerical results of the Ansys code with an acceptable relative error for the different values of the blade thickness. This research work is the continuation of our first work published in 2019 [24]: the purpose of this paper will be to study the durability of Darrieus-type floating wind turbine blades with three-stage rotors under extreme load conditions [23,24]. Considering the applied stresses, perfect long-term durability is required.…”

Section: Mesh Convergence Studymentioning

confidence: 99%

“…This research work is the continuation of our first work published in 2019 [24]: the purpose of this paper will be to study the durability of Darrieus-type floating wind turbine blades with three-stage rotors under extreme load conditions [23,24]. Considering the applied stresses, perfect long-term durability is required.…”

Section: Geometry and Boundary Conditionsmentioning

confidence: 99%

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Numerical Investigation of the Structural Behavior of an Innovative Offshore Floating Darrieus-Type Wind Turbines with Three-Stage Rotors

et al. 2022

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The vertical axis wind turbine (VAWT) design has several advantages for offshore wind turbine installation. The VAWT provides omnidirectional wind power, and its mechanical rotating mechanisms can be installed near sea level. In this paper, the selection of a suitable composite material for floating H-Darrieus-type wind turbines with three-stage rotors and its properties are discussed. The centrifugal forces acting on the composite blades are compared to the values of these forces evaluated on the aluminum blades. Abaqus software is used for numerical simulations. The selection of appropriate laminations used to model the composite materials is discussed. The optimum combination of selected layers is determined to reduce the values of maximum bending stresses and displacements, resulting in a high strength-to-weight ratio. In the post-processor, a path is taken at the location of the application of the maximum load on the blade and the values of the displacements and stresses along this path are determined. These maximum values are compared to the unidirectional strength of the selected composite material to ensure a safe design.

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Feasibility analysis of aerodynamic characteristics for vertical-axis turbines in offshore: A comprehensive analysis on scale and design of wind system

Gaohua

2023

Ocean Engineering

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Design and aerodynamic performance of new Floating H-Darrieus Vertical Axis Wind Turbines

Cited by 5 publications

References 8 publications

Numerical Study of H-Darrieus Turbine as a Rotor for Gravitational Vortex Turbine

Numerical Study of H-Darrieus Turbine as a Rotor for Gravitational Vortex Turbine

Numerical Investigation of the Structural Behavior of an Innovative Offshore Floating Darrieus-Type Wind Turbines with Three-Stage Rotors

Feasibility analysis of aerodynamic characteristics for vertical-axis turbines in offshore: A comprehensive analysis on scale and design of wind system

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