Results 11 to 20 of about 1,411 (215)

Improving the Structural Integrity of Composite Blades in Vertical Axis Wind Turbines: A Parametric Study Employing the Finite Element Method [PDF]

open access: yesPort Said Engineering Research Journal, 2023
The objective of this work is to conduct a stress analysis of an H-rotor vertical axis wind turbine (VAWT) blade under aerodynamic loads. The rotor blade is designed based on the maximum deflection and bending stresses at extreme loading conditions ...
Rasha Soliman   +3 more
doaj   +1 more source

Performance enhancement of an H‐Darrieus vertical axis wind turbine via moving surface boundary‐layer control

open access: yesEnergy Science & Engineering, 2023
The moving surface boundary‐layer control method (MSBC) is a kind of active flow control methods that overcomes the adverse pressure gradient and suppresses the flow separation by directly energizing the boundary layer near the moving surface.
Xinyi Zhang, Xiaojing Sun
doaj   +1 more source

Effect of Helix Angle on the Performance of Helical Vertical Axis Wind Turbine

open access: yesEnergies, 2021
The energy crisis has forced researchers to look for various non-conventional energy sources. Wind energy is one of the potential sources, and researchers have invested resources in developing different kinds of wind turbines. Vertical axis wind turbines
Unnikrishnan Divakaran   +3 more
doaj   +1 more source

CFD Analysis of Vertical Axis Wind Turbine with Winglets [PDF]

open access: yesRenewable Energy Research and Applications, 2022
The current research illustrates the optimization of Vertical Axis Wind Turbine (VAWT) blades with implementation of added winglets displaying improved self-starting capabilities.
Sh.Sh. Dol   +4 more
doaj   +1 more source

Direct Measurements of Turbulence and Flow Characteristics of a Vertical Axis Wind Turbine Using the Eddy Covariance Method [PDF]

open access: yesIranica Journal of Energy and Environment, 2016
Turbulence intensity measurements of vertical axis wind turbine (VAWT) are essential to detemineitsefficiency and performance. In this study, the eddy covariance (EC) method was used to characterise the flow and directly measure turbulence of a VAWT in a
Y. H’ng, Y. Yusup
doaj   +1 more source

Numerical Simulation and Wind Tunnel Investigation on Static Characteristics of VAWT Rotor Starter with Lift-Drag Combined Structure

open access: yesEnergies, 2021
In order to get rid of the impact of the global financial crisis and actively respond to global climate change, it has become a common choice for global economic development to develop clean energy such as wind energy, improve energy efficiency and ...
Fang Feng   +3 more
doaj   +1 more source

A Retrospective of VAWT Technology [PDF]

open access: yes, 2012
The study of Vertical-Axis Wind Turbine (VAWT) technology at Sandia National Laboratories started in the 1970's and concluded in the 1990's. These studies concentrated on the Darrieus configurations because of their high inherent efficiency, but other configurations (e.g., the Savonius turbine) were also examined.
Ashwill, Thomas D.   +2 more
openaire   +2 more sources

Parameter Optimisation of a H-type Three-blade Contra-rotating Vertical-axis Wind Turbine at Low Tip-speed Ratio [PDF]

open access: yesJournal of Applied Fluid Mechanics
Renewable energy sources such as wind energy can alleviate climate deterioration and the global energy crisis, and a major piece of equipment for capturing wind energy is the vertical-axis wind turbine (VAWT), with contra-rotating VAWTs (CR-VAWTs) having
Z. Zhao, K. Chen, Q. Wang, T. Su, H. Hu
doaj   +1 more source

Inductor Disc CFD Analysis for VAWT

open access: yesRevista de Ingeniería Tecnológica, 2021
This work shows the computational simulation of the fluid dynamics of inductor discs (patent pending reception number MX/E/2021/002395) applied to vertical axis wind turbines (VAWT). These inductor discs have a unique and innovative design that can be classified as wind concentrators.
Gerardo Javier Marin-Tellez   +3 more
openaire   +1 more source

The Array Optimization of Vertical Axis Wind Turbine Based on a New Asymmetric Wake Model

open access: yesJournal of Marine Science and Engineering, 2021
With the increasing demand for wind energy, the vertical axis wind turbine (VAWT) is attracting more and more attention. In order to design the VAWT array for better performance, the VAWT wake model needs to reflect the wake characteristics well.
Zheng Yuan   +6 more
doaj   +1 more source

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