Large-scale coherent structures in the atmosphere over a flat terrain

Leonardo Alcayaga*, Gunner Chr. Larsen, Mark Kelly, Jakob Mann

*Corresponding author for this work

Research output: Contribution to journalConference articleResearchpeer-review

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Abstract

Large-scale coherent motions in the atmospheric boundary layer are investigated from field measurements made with two scanning wind lidars over a two-dimensional domain covering approximately 50 km2. The size, isotropy and two-point statistics of the coherent structures, show their influence on wind field homogeneity and local conditions that wind turbines might experience within a wind farm. For neutral atmospheric stability and high wind conditions, most of these structures are observed to be narrow streaks of low streamwise momentum having positive vertical velocity component (ejections), extending several kilometers. The results shown here are consistent with numerical simulations of atmospheric flows under similar conditions, and scale experiments made in laboratories.
Original languageEnglish
Article number062030
Book seriesJournal of Physics: Conference Series
Volume1618
Issue number6
Number of pages10
ISSN1742-6596
DOIs
Publication statusPublished - 2020
EventTORQUE 2020 - Online event, Netherlands
Duration: 28 Sep 20202 Oct 2020
https://www.torque2020.org/

Conference

ConferenceTORQUE 2020
LocationOnline event
CountryNetherlands
Period28/09/202002/10/2020
Internet address

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