Results 81 to 90 of about 2,518 (226)

Effects of turbulence models and grid densities on computational accuracy of flows over a vertical axis wind turbine

open access: yesInternational Journal of Renewable Energy Development, 2018
Flows through a vertical axis wind turbine (VAWT) are very complex due to their inherent unsteadiness caused by large variations of the angle of attacks as the turbine is rotating and changing its azimuth angles simultaneously.
Jaruwan Chaiyanupong, Tawit Chitsomboon
doaj   +1 more source

Design Optimization and Performance Investigation of a Micro Wind Turbine for Domestic Dwelling Used for Renewable Generation System

open access: yesEnergy Science &Engineering, Volume 13, Issue 6, Page 3386-3409, June 2025.
ABSTRACT This study focuses on wind turbine blade optimization using a MATLAB‐based algorithm, QBlade, and CFD software to improve the performance of micro‐horizontal axis wind turbines (HAWTs) in low wind speed environments, particularly for residential use.
Wissam K. Abbas   +2 more
wiley   +1 more source

CFD modelling of VAWT wake effects [PDF]

open access: yes, 2016
Wake effects are important to wind turbine design and wind farm design, because they will affect the aerodynamic performance and structural loads of wind turbine operating in a wind farm.
Huang, Xiaojian
core  

Comparison of dynamic stall on an airfoil undergoing sinusoidal and VAWT-shaped pitch motions

open access: yes, 2022
The aerodynamics of vertical axis wind turbines (VAWTs) are inherently unsteady because the blades experience large angle of attack variations throughout a full turbine revolution.
Hultmark, M., Kiefer, J., Brunner, C. E.
core   +1 more source

Flow characteristics and dynamic responses of a parked straight‐bladed vertical axis wind turbine

open access: yesEnergy Science & Engineering, 2019
With the development of urbanization and the application of renewable energy, wind turbine is becoming an important approach for wind energy reservation and utilization.
Limin Kuang   +7 more
doaj   +1 more source

Effects of blade section on performance of butterfly wind turbines as double-blade VAWTs

open access: yesJournal of Fluid Science and Technology, 2015
A butterfly wind turbine (BWT) is a kind of vertical axis wind turbine (VAWT) with closed-loop blades. These blades form a double-blade structure, which is expected to improve self-starting properties and reduce energy costs because of their simple ...
Yutaka HARA   +6 more
doaj   +1 more source

Effect of Free‐Stream Turbulence on the Power Performance and Wake Characteristics of Paired Counter‐Rotating Vertical‐Axis Wind Turbines

open access: yesWind Energy, Volume 28, Issue 2, February 2025.
ABSTRACT Vertical‐axis wind turbines (VAWTs) operate in the atmospheric boundary layer and are frequently subjected to turbulent flow. The objective of this study is to investigate the effect of free‐stream turbulence on the power performance and wake characteristics of a pair of counter‐rotating VAWTs.
Ayoub Talamalek   +2 more
wiley   +1 more source

Optimizing H-Darrieus Wind Turbine Performance with Double-Deflector Design

open access: yesEnergies
This study aims to improve an H-Darrieus vertical-axis wind turbine (VAWT) by imposing a novel double-deflector design. A computational fluid dynamics (CFD) model was implemented to examine the aerodynamic characteristics of the VAWT with double ...
Wei-Hsin Chen   +5 more
doaj   +1 more source

The Past, Present and Future of Structural Health Monitoring: An Overview of Three Ages

open access: yesStrain, Volume 61, Issue 1, February 2025.
ABSTRACT This paper presents an overview of the discipline of structural health monitoring (SHM), organised in terms of three proposed ages. The first age is delineated by the prehistory of SHM and the period where nondestructing testing methods evolved into an organised set of principles built upon physics‐based models; this age ended when the model ...
C. R. Farrar, N. Dervilis, K. Worden
wiley   +1 more source

VAWT-specList.xlsx

open access: yes
List of characteristics of vertical axis wind turbines suitable for urban deplioyement.
Ioannis TSIONAS (14264237)
core   +1 more source

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