The wingmill - An oscillating-wing windmill

Mckinney, W.; DeLaurier, James

doi:10.2514/6.1980-621

Cited by 59 publications

(74 citation statements)

References 1 publication

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“…Several works on the flutter power generation system have been published so far. McKinney and DeLaurier 1) proposed ''Wingmill,'' a system that utilizes a harmonically oscillating wing to Ó 2012 The Japan Society for Aeronautical and Space Sciences extract wind energy. A rectangular wing is oscillated by wind in coupled pitching and heaving motions with a prescribed phasing between the two motions.…”

Section: Introductionmentioning

confidence: 99%

Study of Multi-Wing Configurations of Elastically Supported Flapping Wing Power Generator

Isogai

Abiru

2012

Trans. Japan Soc. Aero. S Sci.

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The analytical and numerical methods for estimating power and efficiency of a multi-wing cascade configuration of an elastically supported flapping wing power generator are presented. The analytical method is based on the 2D linear potential aerodynamic theory and the numerical method is based on 2D Navier-Stokes equations. Both methods are applied to the two-and three-wing configurations of a hydroelectric power generator oscillating in in-phase and anti-phase modes of oscillation, and the effects of the oscillation mode and wing distance on the power and efficiency of the system are clarified. The power increment expected by introducing the ten-wing configuration is estimated to be approximately 25-33% for the anti-phase mode of oscillation with the adjacent wing distance of 2.0-2.5 chord lengths compared with the simple sum of power generated by a single wing.

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Section: Introductionmentioning

confidence: 99%

Study of Multi-Wing Configurations of Elastically Supported Flapping Wing Power Generator

Isogai

Abiru

2012

Trans. Japan Soc. Aero. S Sci.

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“…After the seminal work of McKinney and DeLaurier [8], in recent years many devices adopting this effect have been proposed: Bryant et al [9], Zhu et al [10], Fei et al [11], Abdelkefi et al [12], Nabavi and Zhang [13], and McCharty et al [14].…”

Section: Methods For Harvesting Energy From Windmentioning

confidence: 99%

FLEHAP: A Wind Powered Supply for Autonomous Sensor Nodes

Boccalero

Boragno

Caviglia

et al. 2016

JSAN

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Abstract:The development of the Internet of Things infrastructure requires the deployment of millions of heterogeneous sensors embedded in the environment. The powering of these sensors cannot be done with wired connections, and the use of batteries is often impracticable. Energy harvesting is the common proposed solution, and many devices have been developed for this purpose, using light, mechanical vibrations, and temperature differences as energetic sources. In this paper we present a novel energy-harvester device able to capture the kinetic energy from a fluid in motion and transform it in electrical energy. This device, named FLEHAP (FLuttering Energy Harvester for Autonomous Powering), is based on an aeroelastic effect, named fluttering, in which a totally passive airfoil shows large and regular self-sustained motions (limit cycle oscillations) even in extreme conditions (low Reynolds numbers), thanks to its peculiar mechanical configuration. This system shows, in some centimeter-sized configurations, an electrical conversion efficiency that exceeds 8% at low wind speed (3.5 m/s). By using a specialized electronic circuit, it is possible to store the electrical energy in a super capacitor, and so guarantee self-powering in such environmental conditions.

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“…It is evident that this phenomenon can be used for power generation if the airfoil motion is linked to an electric generator. McKinney and DeLaurier [7] built such an oscillating-wing power generator already a quarter of a century ago and showed the feasibility of extracting energy from a wind stream. However, little work was done since then to explore the competitiveness of such a system with the conventional wind turbines using rotating blades.…”

Section: Flapping-wing Power Extractionmentioning

confidence: 99%

Flapping-wing aerohydromechanics in nature and engineering

Jones¹,

Platzer²

2006

WIT Transactions on Ecology and the Environment, Vol 87

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Flapping wings have been the propulsion system used by birds, insects and fish for millions of years. Yet, the preferred system for aircraft and ship propulsion is the propeller or jet engine. It is the objective of this paper to show that recent interest in the development of micro air vehicles may lead to the adoption of flapping-wing propulsors as the superior system. Also, it is shown that flapping hydrofoils may have potential as effective water energy conversion devices. The knowledge gained in the aerohydromechanics of birds, insects and fish therefore may soon be applied to the design of air vehicles and power generators.

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The wingmill - An oscillating-wing windmill

Cited by 59 publications

References 1 publication

Study of Multi-Wing Configurations of Elastically Supported Flapping Wing Power Generator

Study of Multi-Wing Configurations of Elastically Supported Flapping Wing Power Generator

FLEHAP: A Wind Powered Supply for Autonomous Sensor Nodes

Flapping-wing aerohydromechanics in nature and engineering

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