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Reproducible Inflow Modifications for a Wind Tunnel Mounted Research Hawt

[+] Author Affiliations
Sirko Bartholomay, Wolf-Leonard Fruck, George Pechlivanoglou, Christian Navid Nayeri, Christian Oliver Paschereit

TU Berlin, Berlin, Germany

Paper No. GT2017-64364, pp. V009T49A013; 12 pages
doi:10.1115/GT2017-64364
From:
  • ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
  • Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy
  • Charlotte, North Carolina, USA, June 26–30, 2017
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5096-1
  • Copyright © 2017 by ASME

abstract

This paper describes a method of creating inhomogeneous inflow conditions to a horizontal axis wind turbine installed in the settling chamber of the large wind tunnel of the TU Berlin. Thereby, a steady gust (i.e. spatial velocity gradient, constant over time) is created which covers half of the swept area of the turbine. For purposes of analysis, a hotwire traversing system was used and measurements were correlated to on-blade angle of attack, velocity and blade root bending moment measurements. Moreover, the paper presents wake measurements at one downstream plane behind the turbine.

Copyright © 2017 by ASME

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