Results from a quantitative tuft flow visualization of a utility scale wind turbine undergoing a yaw movement are presented. Based on the turbine’s SCADA data suitable pre- and post-yaw timeframes were defined and the surface flowfields were analysed. A distinct asymmetry between the surface flow patterns of the 90° and 270° azimutal blade positions was observed in the pre-yaw timeframe. After the turbine yawed back into the wind the symmetry was restored. Yaw-misalignment is a source of dynamic loads which limit a turbine’s life time. The characterization of the involved flow structures and their dynamics is an essential step towards possible future load alleviation techniques. The quantitative tuft flow visualization technique is a measurement tool that can be used to assess the surface flow field.
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ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
June 15–19, 2015
Montreal, Quebec, Canada
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5680-2
PROCEEDINGS PAPER
Utility Scale Wind Turbine Yaw From a Flow Visualization View Available to Purchase
Henning M. Lang,
Henning M. Lang
TU Berlin, Berlin, Germany
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Christian N. Nayeri,
Christian N. Nayeri
TU Berlin, Berlin, Germany
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Christian O. Paschereit,
Christian O. Paschereit
TU Berlin, Berlin, Germany
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Georgios Pechlivanoglou,
Georgios Pechlivanoglou
SMART BLADE GmbH, Berlin, Germany
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Guido Weinzierl
Guido Weinzierl
SMART BLADE GmbH, Berlin, Germany
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Stefan Vey
TU Berlin, Berlin, Germany
Henning M. Lang
TU Berlin, Berlin, Germany
Christian N. Nayeri
TU Berlin, Berlin, Germany
Christian O. Paschereit
TU Berlin, Berlin, Germany
Georgios Pechlivanoglou
SMART BLADE GmbH, Berlin, Germany
Guido Weinzierl
SMART BLADE GmbH, Berlin, Germany
Paper No:
GT2015-43407, V009T46A021; 6 pages
Published Online:
August 12, 2015
Citation
Vey, S, Lang, HM, Nayeri, CN, Paschereit, CO, Pechlivanoglou, G, & Weinzierl, G. "Utility Scale Wind Turbine Yaw From a Flow Visualization View." Proceedings of the ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy. Montreal, Quebec, Canada. June 15–19, 2015. V009T46A021. ASME. https://doi.org/10.1115/GT2015-43407
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