The present paper analyzes the effect of passive flow control (PFC) with respect to the retrofitting on small horizontal axis wind turbines (sHAWTs). We conducted extensive wind tunnel studies on a high performance low Reynolds airfoil using different PFC elements, i.e., vortex generators (VGs) and Gurney flaps (GF). qblade, an open source blade element momentum (BEM) code, is used to study the retrofitting potential of a simulated small wind turbine. The turbine design is presented and discussed. The simulations include the data and polars gained from the experiments and give further insight into the effects of PFC on sHAWTs. Therefore, several different blades were simulated using several variations of VG positions. This paper discusses their influence on the turbine performance. The authors especially focus on the startup performance as well as achieving increased power output at lower wind speeds. The vortex generators reduce the risk of laminar separation and enhance the lift in some configurations by more than 40% at low Reynolds numbers.
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March 2017
Research-Article
Potential of Retrofit Passive Flow Control for Small Horizontal Axis Wind Turbines
D. Holst,
D. Holst
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
e-mail: David.Holst@TU-Berlin.de
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
e-mail: David.Holst@TU-Berlin.de
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G. Pechlivanoglou,
G. Pechlivanoglou
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
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F. Wegner,
F. Wegner
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
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C. N. Nayeri,
C. N. Nayeri
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
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C. O. Paschereit
C. O. Paschereit
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Search for other works by this author on:
D. Holst
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
e-mail: David.Holst@TU-Berlin.de
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
e-mail: David.Holst@TU-Berlin.de
G. Pechlivanoglou
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
F. Wegner
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
C. N. Nayeri
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
C. O. Paschereit
Chair of Fluid Dynamics,
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
Hermann-Föttinger-Institut,
Technische Universität Berlin,
Müller-Breslau-Straße 8,
Berlin 10623, Germany
1Corresponding author.
Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received July 1, 2016; final manuscript received July 29, 2016; published online October 11, 2016. Editor: David Wisler.
J. Eng. Gas Turbines Power. Mar 2017, 139(3): 032604 (8 pages)
Published Online: October 11, 2016
Article history
Received:
July 1, 2016
Revised:
July 29, 2016
Citation
Holst, D., Pechlivanoglou, G., Wegner, F., Nayeri, C. N., and Paschereit, C. O. (October 11, 2016). "Potential of Retrofit Passive Flow Control for Small Horizontal Axis Wind Turbines." ASME. J. Eng. Gas Turbines Power. March 2017; 139(3): 032604. https://doi.org/10.1115/1.4034543
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