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The Physics of Starting Process for Vertical Axis Wind Turbines

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Part of the Springer Tracts in Mechanical Engineering book series (STME)

Abstract

In recent years there is a renewed interest in both large-scale and small-scale vertical axis wind turbines (VAWT). The development of multi-megawatt floating offshore VAWT is mainly a response to a plateau in the improvement of the aerodynamic performance of horizontal axis wind turbines. The research in small rotors (<100 kW) is motivated by the future demand for a decentralized sustainable energy supply in remote areas. However, such designs have received much less attention than the more common propeller-type designs and the understanding of some aspects of their operation remains, to this day, incomplete. This holds, because after some authors the starting operation is difficult, if not impossible, to induce the self-start capabilities without external assistance. This paper reviews the cause of the inability of the low solidity fixed pitch vertical axis wind turbines to self-start, and investigates the flow physics of dynamic stall in order to comprehend, interpret, understand and explain-all this comprising the problem of start-up.

Keywords

  • Vorticity Structure
  • Vertical Axis Wind Turbine
  • Unsteady Wake
  • Rotor Configuration
  • Wake Interaction

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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  • DOI: 10.1007/978-3-319-16202-7_7
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Acknowledgments

This work was realized through the Partnership programme in priority domains—PN II, developed with support from ANCS CNDI—UEFISCDI, project no. PN-II-PT-PCCA-2011-32-1670.

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Correspondence to Horia Dumitrescu .

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Dumitrescu, H., Cardoş, V., Mălăel, I. (2015). The Physics of Starting Process for Vertical Axis Wind Turbines. In: Ferrer, E., Montlaur, A. (eds) CFD for Wind and Tidal Offshore Turbines. Springer Tracts in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-16202-7_7

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  • DOI: https://doi.org/10.1007/978-3-319-16202-7_7

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-16201-0

  • Online ISBN: 978-3-319-16202-7

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