Wake Meandering – An Analysis of Instantaneous 2D Laser Measurements

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by Ferhat Bingöl, Gunner C Larsen, Jakob Mann
Abstract:
The vast majority of wind turbines are today erected in wind farms. As a consequence, wake generated loads are becoming more and more important. We present a new experimental technique to measure the instantaneous wake deficit directly, thus allowing us to quantify the wake meandering as well as the instantaneous wake expansion expressed in a meandering frame of reference. The experimental results are subsequently used in a preliminary verification of the basic conjecture of a wake meandering model that essentially considers the wake as a passive tracer.
Reference:
Wake Meandering – An Analysis of Instantaneous 2D Laser Measurements (Ferhat Bingöl, Gunner C Larsen, Jakob Mann), Chapter in Journal of Physics: Conference Series, 2nd International Conference on “The Science of Making Torque From Wind”, IOP Publishing Ltd., volume 75, 2007.
Bibtex Entry:
@INCOLLECTION{Bingoel2007,
  author = {Ferhat Bingöl and Gunner C Larsen and Jakob Mann},
  title = {Wake Meandering - An Analysis of Instantaneous 2D Laser Measurements},
  booktitle = {Journal of Physics: Conference Series, 2nd International Conference
	on "The Science of Making Torque From Wind"},
  publisher = {IOP Publishing Ltd.},
  year = {2007},
  volume = {75},
  number = {1},
  pages = {012059},
  address = {Lyngby Denmark},
  month = {August},
  __markedentry = {[febi:]},
  abstract = {The vast majority of wind turbines are today erected in wind farms.
	As a consequence, wake generated loads are becoming more and more
	important. We present a new experimental technique to measure the
	instantaneous wake deficit directly, thus allowing us to quantify
	the wake meandering as well as the instantaneous wake expansion expressed
	in a meandering frame of reference. The experimental results are
	subsequently used in a preliminary verification of the basic conjecture
	of a wake meandering model that essentially considers the wake as
	a passive tracer.},
  doi = {10.1088/1742-6596/75/1/012059},
  file = {:YAYINLAR\1742-6596_75_1_012059.pdf:PDF},
  journal = {Journal of Physics: Conference Series},
  owner = {febi},
  timestamp = {2013.12.11},
  url = {http://stacks.iop.org/1742-6596/75/i=1/a=012059}
}