Design considerations for small-scale wind energy harvesters driven by broadband vortex-induced vibrations

Paxson, Benjamin; Wickenheiser, Adam M.

doi:10.1117/12.2046344

Cited by 4 publications

(1 citation statement)

References 8 publications

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“…The power density P in the wind is related to the cube of the wind speed, which can be expressed as:

where the ρ and

represent air density and wind speed, respectively. The belt, cylinder, and flow medium interactions can be described by the governing equations of each subsystem with the addition of the appropriate coupling terms [ 20 , 22 , 26 ]. In flow speeds, less than 0.3 of the sound velocity is assumed to be incompressible flow.…”

Section: Energy Harvester Devicementioning

confidence: 99%

Karman Vortex Creation Using Cylinder for Flutter Energy Harvester Device

et al. 2017

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This study presents the creation of a Karman vortex for a fluttering electromagnetic energy harvester device using a cylinder. The effects of two parameters, which are the diameter and the position of the cylinder, were investigated on the Karman vortex profile and the amplitude of the fluttering belt, respectively. A simulation was conducted to determine the effect of the creation of the Karman vortex, and an experiment was performed to identify influence of the position of the cylinder on the fluttering belt amplitude. The results demonstrated that vortex-induced vibration occurred at the frequency of the first natural mode for the belt at 3 cm and 10 cm for the diameter and position of the cylinder, respectively. Under such configuration, an electromagnetic energy harvester was attached and vibrated via the fluttering belt inside the turbulent boundary layers. This vibration provides a measured output voltage and can be used in wireless sensors.

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“…The power density P in the wind is related to the cube of the wind speed, which can be expressed as:

where the ρ and

Section: Energy Harvester Devicementioning

confidence: 99%