Results 61 to 70 of about 1,850 (228)

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

Simulating variable pitch crossflow water turbines: A coupled unsteady ONERA-EDLIN model and streamtube model [PDF]

open access: yes, 2013
This article describes a new method for simulating unsteady hydrodynamics forces and moments on the blades of a crossflow ‘Darrieus’ turbine with active pitch variation.
J.A. Astolfi   +7 more
core   +1 more source

Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine

open access: yes, 2021
Purpose: The aim of this paper is to assess the ability of a stress-blended eddy simulation (SBES) turbulence model to predict the performance of a three-straight-bladed vertical axis wind turbine (VAWT).
Yao, Yufeng   +3 more
core   +1 more source

Response Surface Optimisation of Vertical Axis Wind Turbine at low wind speeds

open access: yesEnergy Reports, 2022
The Vertical Axis Wind Turbines (VAWTs) have an increasing global market and this emphasis the need for to improve the performance of VAWTs, especially at relatively low wind speed.
Mohamed Mohamed Elsakka   +5 more
doaj   +1 more source

Biomimetic Approaches for Renewable Energy and Carbon Neutrality: Advancing Nature‐Inspired Approaches for Sustainable Development

open access: yesSustainable Development, Volume 33, Issue 5, Page 6717-6733, October 2025.
ABSTRACT As global non‐renewable energy sources depletes, achieving carbon neutrality by 2050 has become an urgent international priority, as outlined in the Paris Agreement. Renewable energy transition demands environmentally sustainable, economically viable, and energy‐efficient innovations.
Wen Han   +4 more
wiley   +1 more source

Effect of dynamic stall on the aerodynamics of vertical-axis wind turbines

open access: yes, 2011
Accurate simulations of the aerodynamic performance of vertical-axis wind turbines pose a significant challenge for computational fluid dynamics methods.
Richard E. Brown   +4 more
core   +1 more source

Numerical Simulations of a VAWT in the Wake of a Moving Car

open access: yesEnergies, 2017
Wind energy generated from the wake of moving cars has a large energy potential that has not yet been utilized. In this study, a vertical axis wind turbine (VAWT) was used to recover energy from the wakes of moving cars.
Wenlong Tian, Zhaoyong Mao, Yukai Li
doaj   +1 more source

Performance Analysis Vertical-Axis Wind Turbine (VAWT) Turbine Convex Savonius

open access: yes, 2019
The bayu Power Plant (wind) is one of the potential renewable energy sources to generate electrical energy in the future. Wind power plants are working systems that change wind energy to rotate the generator to produce electricity. Based on the nature of renewable wind energy and the diminishing supply of fossil energy, research and development on the ...
Basuki Winarno   +2 more
openaire   +2 more sources

The design, construction and performance analysis of a portable vertical axis wind turbine (VAWT) generator

open access: yesTikrit Journal of Pure Science, 2022
The increase demand for electric power, high consumption and little power station capacity has caused to reduce supplying hours of electricity in Iraq. Furthermore high bills prices especially in rural areas and cities faraway from electricity-generating power stations. In addition to the increase in pollution due to the use of fossil fuel sources. All
Hanaa E. Jasim   +2 more
openaire   +2 more sources

Performance Improvement of Hybrid Vertical Axis Wind Turbines Equipped With J‐Shaped Blades

open access: yesEnergy Science &Engineering, Volume 13, Issue 9, Page 4433-4444, September 2025.
This study presents a novel hybrid vertical axis wind turbine, utilizing J‐shaped blades in Darrieus rotor. The proposed configuration shows the potential of J‐shaped blades in improving the overall performance of hybrid rotors. ABSTRACT Vertical axis wind turbines (VAWTs) are emerging as a promising solution for urban wind energy harvesting, owing to ...
Narges Kashani   +3 more
wiley   +1 more source

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