Parametric study of H-Darrieus vertical-axis turbines using CFD simulations

R Gosselin, G Dumas, M Boudreau - Journal of Renewable and …, 2016 - pubs.aip.org
A parametric study of vertical axis turbines of the H-Darrieus type is conducted using state-of-
the-art Computational Fluid Dynamics (CFD) and the k-ω Shear Stress Transport RANS …

Flow separation on a high Reynolds number, high solidity vertical axis wind turbine with straight and canted blades and canted blades with fences

S Armstrong, A Fiedler, S Tullis - Renewable energy, 2012 - Elsevier
The aerodynamics of a high solidity vertical axis wind turbine was investigated through wind
tunnel tests of a full size turbine operating at Reynolds numbers of Re≥ 500,000 (where the …

Computational fluid dynamics simulation of the aerodynamics of a high solidity, small‐scale vertical axis wind turbine

K McLaren, S Tullis, S Ziada - Wind Energy, 2012 - Wiley Online Library
ABSTRACT A computational fluid dynamics simulation was performed for a small‐scale,
high solidity (σ= 0.48) H‐type Darrieus vertical axis wind turbine. Two‐dimensional unsteady …

Response of a vertical axis wind turbine to time varying wind conditions found within the urban environment

SJ Kooiman, SW Tullis - Wind Engineering, 2010 - journals.sagepub.com
Experimental testing of a vertical axis wind turbine within the urban environment was used to
assess the effects that unsteady wind conditions have on the aerodynamic performance of …

Measurement of high solidity vertical axis wind turbine aerodynamic loads under high vibration response conditions

K McLaren, S Tullis, S Ziada - Journal of Fluids and Structures, 2012 - Elsevier
A series of full-scale experimental wind tunnel tests were performed to determine the
aerodynamic loading behaviour on the airfoils of a high solidity, H-type, vertical axis wind …

Experimental study of the effect of tower shadow on anemometer readings

S Orlando, A Bale, DA Johnson - Journal of Wind Engineering and …, 2011 - Elsevier
Meteorological (met) tower measurements are the industry standard for wind resource
assessment for wind farm siting. Towers have many potential geometries such as lattice …

An evaluation testbed for wind turbine blade tip designs—winglet results

D Gertz, DA Johnson… - Wind Engineering, 2012 - journals.sagepub.com
A 3.3 m diameter variable speed wind turbine and rotor has been designed, fabricated and
tested with exchangeable blade tip capability. This rotor was custom designed utilizing the …

Experimental study on flow characteristics of a large-scale open jet wind tunnel for outdoor pool fire research

J Lei, P Huang, L Zhang, Y Yuan, W Deng… - Journal of Wind …, 2021 - Elsevier
An open jet wind tunnel with an exit area of 23​×​ 9​ m 2 has been built to study the
behaviors of large-scale pool fires under controlled wind conditions. A series of …

An evaluation testbed for wind turbine blade tip designs–baseline case

D Gertz, DA Johnson - International Journal of Energy …, 2011 - Wiley Online Library
SUMMARY A 3.3 m diameter wind turbine rotor has been designed, fabricated, and tested in
a large scale university operated indoor wind facility. The rotor was custom designed for …

In-blade load sensing on 3D printed wind turbine blades using trailing edge flaps

F Samara, DA Johnson - Journal of Physics: Conference Series, 2018 - iopscience.iop.org
As wind turbines become larger the loading on the blades also increases. Controlling a
section of the trailing edge of the turbine airfoil is found to reduce load fluctuations on wind …