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.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsReferences
Allet A, Halle S, Paraschivoiu I (1999) Numerical simulation of dynamic stall around an airfoil in Darrieus motion. J Solar Energy 121:69–76
Ferreira CJD, van Zurjlen A, Bily H, van Bussel G, van Kuik G (2010) Simulating dynamic stall in a two-dimensional vertical-axis wind turbine: verification and validation with particle image velocimetry data. Wind Energy 13:1–17
Malael I, Dumitrescu H, Cardos V (2014) Numerical simulation of vertical axis wind turbine at low speed ratios. Glob J Res Eng 1 Numer Methods 14(1):9–20
Wang S, Ingham DB, Lin M, Pourkashanian M, Zhi T (2010) Numerical investigations on dynamic stall of low Reynolds number flow around oscillating airfoils. Comput Fluids 39:1529–1541
Wood D (2011) Small Wind Turbines: analysis, design and application. Springer, London
Stuart JT (1967) On finite amplitude oscillations in laminar mixing layers. J Fluid Mech 29(3):417–440
Gursul I, Rockwell D (1991) Effect of concentration of vortices on streakline patterns. Exp Fluids 10:294–296
Goldstein S (1969) Fluid mechanics in the first half of the XXth century. Ann Rev Fluid Mech 1:1–28
Wu JZ, Gu JW, Wu JM (1988) Steady three-dimensional fluid particle-separation from arbitrary smooth surface and formation of free vortex layers. Z Flugwiss Weltraumforsch 12:89–98
Dallman U, Schewe G (1987) On topological changes of separating flow structures at transition Reynolds numbers. AIAA Pap 8:7–1266
Ferreira CS (2009) The near wake of the VAWT: 2D and 3D views of the VAWT aerodynamics. PhD Thesis, Delft University of Technology
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.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Springer International Publishing Switzerland
About this chapter
Cite this chapter
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
Download citation
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
eBook Packages: EngineeringEngineering (R0)