Results 71 to 80 of about 636 (188)

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

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

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

Design and Fabrication of H Darrieous VAWT

open access: yes, 2019
In this thesis, design calculation and fabrication of H Darrieus VAWT are carried out. The purpose of this thesis is to produce power of electricity. H Darrieus wind turbine is a type of vertical axis wind turbine. This wind turbine consists of three straight blades, technically an airfoil which is connected to the radial arm and rotating main shaft ...
Hnin Yu Yu Kyaw   +2 more
openaire   +2 more sources

Vawt Literature Survey

open access: yes, 2008
The report contains a wrap-up of existing knowledge on VAWT, which is provided by searching on the ETDEWEB data base and for patents on the Derwent data base.
Schmidt Paulsen, Uwe; id_orcid 0000-0002-8991-5658   +1 more
openaire   +1 more source

Existing VAWT Technologies

open access: yes, 2008
The report contains a description of existing VAWT concepts, i.e key aspects in rotor types, blade design (shape and form), support struts, winglets, key aspects of controls and bearings.
Schmidt Paulsen, Uwe; id_orcid 0000-0002-8991-5658   +2 more
openaire   +1 more source

Power performance optimization of twin vertical axis wind turbine for farm applications

open access: yesWind Energy and Engineering Research
Twin Vertical Axis Wind Turbines (VAWTs) appear to be the potential candidates for enhancing the power density of wind farms. Earlier twin-VAWT studies were mainly focused on carrying out the parametric study of one or two twin-VAWT variables together ...
M. Tariq Javaid, Syed Saddam ul Hassan
doaj   +1 more source

Energy recovery of moving vehicles' wakes in highways by vertical axis wind turbines [PDF]

open access: yesFME Transactions, 2020
In this study, energy recovery from moving vehicles wake by vertical axis wind turbine (VAWT) was investigated. The wind turbine is designed to be located at the highways medians to generate electricity. Transient simulation was performed to evaluate the
Ismaeel Tareq A.   +3 more
doaj  

Studies on Vertical Axis Wind Turbine - A Review

open access: yesJournal of Advanced Mechanical Sciences, 2022
A VAWT is the one turbine which rotor and shaft are kept in transverse direction to the direction of the wind. Due to this the motor or generator is kept on the ground. There are Darrieus, Savonius and Giromill types of VAWT are there.
Sankalp Srivastava
doaj  

Dynamic Study of a Rooftop Vertical Axis Wind Turbine Tower Based on an Automated Vibration Data Processing Algorithm

open access: yesEnergies, 2018
When constructed on tall building rooftops, the vertical axis wind turbine (VAWT) has the potential of power generation in highly urbanized areas. In this paper, the ambient dynamic responses of a rooftop VAWT were investigated.
Ying Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy