Comparison of Rotor Wake Identification and Characterization Methods for the Analysis of Wake Dynamics and Evolution

Research output: Contribution to journalArticlepeer-review

13 Scopus Citations

Abstract

Optimal wind power plant design requires understanding of wind turbine wake physics and validation of engineering wake models under wake-controlled operating conditions. In this work, we have developed and investigated several different wake identification and characterization methods for analyzing wake evolution and dynamics. The accuracy and robustness of these methods, based on Gaussian function fitting and adaptive contour identification, have been assessed by application to a large-eddy simulation data set. A new contour-based method based on downstream momentum deficit has been considered. Uncertainties arising from wake-identification errors result in characterizations of the wake expansion, recovery, and meandering motion that differ by 19% of the rotor area, 4% of the freestream, and 15% rotor diameter, respectively.

Original languageAmerican English
Article number012070
Number of pages10
JournalJournal of Physics: Conference Series
Volume1452
Issue number1
DOIs
StatePublished - 3 Mar 2020
EventNorth American Wind Energy Academy, NAWEA 2019 and the International Conference on Future Technologies in Wind Energy 2019, WindTech 2019 - Amherst, United States
Duration: 14 Oct 201916 Oct 2019

Bibliographical note

Publisher Copyright:
© 2020 IOP Publishing Ltd. All rights reserved.

NREL Publication Number

  • NREL/JA-5000-74643

Keywords

  • rotor wake
  • wake dynamics
  • wake evolution
  • wind power plants

Fingerprint

Dive into the research topics of 'Comparison of Rotor Wake Identification and Characterization Methods for the Analysis of Wake Dynamics and Evolution'. Together they form a unique fingerprint.

Cite this