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   Articles with "active grid" as a keyword



Dynamic wake development of a floating wind turbine in free pitch motion subjected to turbulent inflow generated with an active grid

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recommendations! Published in 2017 at "Renewable Energy"

DOI: 10.1016/j.renene.2017.05.016

Abstract: Development of wake turbulence of a floating wind turbine model under low and high turbulence inflow was investigated in comparison to the wake of a bottom fixed turbine. In wind tunnel experiments, two inflow conditions… read more here.

Keywords: turbine; wind; turbulent inflow; active grid ... See more keywords
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Stirring anisotropic turbulence with an active grid

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recommendations! Published in 2020 at "Physics of Fluids"

DOI: 10.1063/5.0008021

Abstract: We study spectra and high-order structure functions in anisotropic wind tunnel turbulence, which is generated using an active grid. In the first experiment, we impose homogeneous shear turbulence with a constant gradient of the mean… read more here.

Keywords: isotropy small; return isotropy; turbulence; active grid ... See more keywords

Energy cascades in active-grid-generated turbulent flows

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recommendations! Published in 2019 at "Physical Review Fluids"

DOI: 10.1103/physrevfluids.4.104601

Abstract: The energy cascade and diverse turbulence properties of active-grid-generated turbulence were studied in a wind tunnel via hot-wire anemometry. To this aim, two active grid protocols were considered. The first protocol is the standard triple-random… read more here.

Keywords: grid generated; turbulence; active grid; energy ... See more keywords

High-resolution wind speed measurements with quadcopter uncrewed aerial systems: calibration and verification in a wind tunnel with an active grid

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recommendations! Published in 2024 at "Atmospheric Measurement Techniques"

DOI: 10.5194/amt-17-4941-2024

Abstract: Abstract. As a contribution to closing observational gaps in the atmospheric boundary layer (ABL), the Simultaneous Wind measurement with Uncrewed Flight Systems in 3D (SWUF-3D) fleet of uncrewed aerial systems (UASs) is utilized for in… read more here.

Keywords: wind; wind speed; active grid; wind speeds ... See more keywords