Abstract
An oscillating wing exposed to a uniform fluid flow and performing a coupled plunging and pitching motion either produces thrust or extracts energy. The amplitude ratio of the two degrees of freedom determines the respective mode. A stroke-wing engine operates in the mode in which energy is gained. The stroke-wing engine with dual wings enhances the efficiency of the single wing machine. Two wings work in opposite direction and take advantage of the interference effects between the neighbouring wings. Numerical and experimental results are presented for a stroke-wing engine with dual wings. The technology carrier DualWingGenerator operates in air and is intended to compete with wind turbines at selected sites with medium-range wind velocities.
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General information: http://www.festo.com/cms/en_corp/13707.htm
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Acknowledgments
Many thanks are owed to F. Scharstein, who built the laboratory machine DWE, and to J. Rädler, who developed the control system for the test stand. The author gratefully acknowledges the full financial support for the Dual Wing Project by the Festo company’s Bionic Learning Network and his initiator Dr. W. Stoll.
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Send, W. (2016). Stroke-Wing Engine with Dual Wings for Extracting Power from an Airstream. In: Dillmann, A., Heller, G., Krämer, E., Wagner, C., Breitsamter, C. (eds) New Results in Numerical and Experimental Fluid Mechanics X. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 132. Springer, Cham. https://doi.org/10.1007/978-3-319-27279-5_77
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DOI: https://doi.org/10.1007/978-3-319-27279-5_77
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