NUMERICAL INVESTIGATION OF FLOW ON A DARRIEUS VERTICAL AXIS WIND TURBINE BLADE WITH VORTEX GENERATORS

2020 ◽  
Vol 47 (1) ◽  
pp. 43-58
Author(s):  
A. Dadamoussa ◽  
Khadidja Boualem ◽  
Tayeb Yahiaoui ◽  
Omar Imine
Keyword(s):  
Wind Turbine ◽  
Numerical Investigation ◽  
Turbine Blade ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Vortex Generators ◽  
Vertical Axis Wind Turbine

Strategy for diagnosing the degree of dynamic stall on a vertical-axis wind turbine blade

2022 ◽  
Author(s):  
David Bensason ◽  
Sébastien Le Fouest ◽  
Anna M. Young ◽  
Karen Mulleners
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Dynamic Stall ◽  
Vertical Axis Wind Turbine

Multi-objective Optimization and Experimental Testing of a Laminated Vertical-Axis Wind Turbine Blade

2021 ◽  
pp. 39-65
Author(s):  
Zorana Trivković ◽  
Jelena Svorcan ◽  
Marija Baltić ◽  
Nemanja Zorić ◽  
Ognjen Peković
Keyword(s):  
Wind Turbine ◽  
Turbine Blade ◽  
Experimental Testing ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Multi Objective Optimization ◽  
Vertical Axis Wind Turbine ◽  
Multi Objective

Simulation studies to analyze the static mechanical properties of helical Savonius vertical axis wind turbine blade

2020 ◽  
Vol 33 ◽  
pp. 3737-3745
Author(s):  
S. Seralathan ◽  
Ch. Pavan Veera Sai Ganesh ◽  
Bhanu Prakash Reddy Venganna ◽  
N. Sai Srinivas ◽  
B. Lokesh Chowdary ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Simulation Studies ◽  
Vertical Axis Wind Turbine ◽  
Static Mechanical ◽  
Static Mechanical Properties

Analysis of Structural Vibrations of Vertical Axis Wind Turbine Blades via Hamilton’s Principle — Part 3: Pitch Angle and Equilibrium State

2021 ◽  
pp. 2150070
Author(s):  
Jianyou Huang ◽  
Chia-Ou Chang ◽  
Chien-Cheng Chang
Keyword(s):  
Exact Solution ◽  
Equilibrium State ◽  
Wind Turbine ◽  
Turbine Blade ◽  
Pitch Angle ◽  
Coupling Effect ◽  
Turbine Blades ◽  
Vertical Axis ◽  
Wind Turbine Blade ◽  
Vertical Axis Wind Turbine

Pitch angle is one of the most important parameters of wind turbine blade. This study is aimed to investigate the effect of the pitch angle on the deformation of a VAWT. Lagrangian mechanics and Euler’s beam theory are used to derive the motion equations of linear structural vibration for straight blade vertical axis wind turbine blade with the pitch angle [Formula: see text]. The complete equations of motion take account of the 4-DOF deformation of flexural–flexural–torsion–extension as well as the material damping. Vibration analysis of generalized displacement about the equilibrium state (GDAES) is carried out with respect to the displacement of the equilibrium state (DOES), which is separated from the motion of vibration. After simplifying the equilibrium equation of 4-DOF into 1-DOF system, the exact solution of displacement [Formula: see text] of the equilibrium state is derived. The correction [Formula: see text] of [Formula: see text] due to the pitch angle and the characteristics of [Formula: see text] with constant linear speed are analyzed. Furthermore, we investigate the coupling effect of lateral bending and axial extension of the blade on [Formula: see text] is analyzed. Finally, the exact solution of [Formula: see text] is verified by the central difference method.

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