Results 71 to 80 of about 469 (180)
Wind 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
A Novel Surrogated Approach for Optimizing a Vertical Axis Wind Turbine With Straight Blades
Wind EnergyVertical axis wind turbine (VAWT) has a rotating axis perpendicular to the wind direction. This type of wind turbine that is suitable for urban environments has low wind direction dependency and noise.
Sepehr Sanaye +2 more
doaj +1 more source
Application of Circulation Controlled Blades for Vertical Axis Wind Turbines
Energies, 2013 The blades of a vertical axis wind turbine (VAWT) rotor see an inconsistent angle of attack through its rotation. Consequently, VAWT blades generally use symmetrical aerofoils with a lower lift-to-drag ratio than cambered aerofoils tailored to maximise ...
Velissarios Kourkoulis, Andrew Shires
doaj +1 more source
The Past, Present and Future of Structural Health Monitoring: An Overview of Three Ages
Strain, 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
Darrieus Vertical Axis Wind Turbine (VAWT) Performance Enhancement by Means of Gurney Flap
MachinesThis study investigates the aerodynamic effect of Gurney flaps (GFs) of different heights on the performance of a Darrieus vertical axis wind turbine (VAWT). Through numerical simulations, the performance of a baseline airfoil is compared against configurations with GFs of 0.5%c, 1%c, and 1.5%c chord lengths across a range of tip-speed ratios (TSRs ...
Hanif Ullah +4 more
openaire +4 more sources
Design And Analysis of Modern Vertical Axis Wind Turbine (VAWT)
INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENTWith traditional energy sources running low, the world is turning more towards renewable energy, particularly wind power. But current wind turbines have their flaws. Enter the wind turbine tree, a potential solution to these issues. This study looks at various research papers on different wind turbine designs.
openaire +1 more source
ENERGY HARVESTING FROM COOLING TOWER BY VERTICAL AXIS WIND TURBINE (VAWT)
Jurnal Teknologi, 2015 In general, Malaysia is not a suitable location to harvest energy from wind. This is because Malaysia’s mean annual wind speed is low (less than 4 m/s) and inconsistent throughout the year. However, exhaust air systems which are usually installed in commercial buildings creates a uniform and consistent wind speed.
Ahmad Azizan Abd Rahman +3 more
openaire +1 more source
EnergiesVertical-axis wind turbine (VAWT) clusters have been extensively investigated owing to their positive aerodynamic interactions. However, accurate predictions of the flow field and power output of each rotor in VAWT clusters using high-fidelity ...
Md. Shameem Moral +4 more
doaj +1 more source
Dynamic Stall of a Vertical-Axis Wind Turbine and Its Control Using Plasma Actuation
Energies, 2019 In this paper, a dynamic stall control scheme for vertical-axis wind turbine (VAWT) based on pulsed dielectric-barrier-discharge (DBD) plasma actuation is proposed using computational fluid dynamics (CFD).
Lu Ma +3 more
doaj +1 more source
The development of portable energy is currently very rapid because the need for energy, especially electricity, is increasing, this cannot rely on fossil-based energy due to limited environmental emissions, various types of power plants including wind energy which is renewable energy, this VAWT prototype uses 2 blade and 4 blade variations with a blade
Mochammad Agung Nofiantoro +1 more
openaire +2 more sources