Large-Eddy Simulations of Idealized Atmospheric Boundary Layers Using Nalu-Wind

C. Kaul, Shreyas Ananthan, Matthew Churchfield, J. Mirocha, L. Berg, R. Rai

Research output: Contribution to journalArticlepeer-review

3 Scopus Citations


Accurate prediction of wind-plant performance relies, in part, on properly characterizing the turbulent atmospheric boundary layer (ABL) flow in which wind turbines operate. Large-eddy simulation (LES) is a powerful tool for simulating ABLs because it resolves the largest, most energetic scales of three-dimensional turbulent motions. Yet LES predictions are well known to depend on modeling choices such as grid resolution, numerical discretization schemes, and closures for unresolved scales of turbulence. Here, we evaluate how these choices influence predictions of ABL winds using Nalu-Wind, a wind-specific fork of the open-source, generalized, unstructured, massively parallel flow solver NaluCFD/Nalu.

Original languageAmerican English
Article numberArticle No. 012078
Number of pages17
JournalJournal of Physics: Conference Series
Issue number1
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-2C00-77162


  • atmostpheric boundary layer
  • large-eddy simulation
  • Nalu-Wind
  • turbulence
  • wind plant performance
  • wind turbines


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