On the self-similarity of wind turbine wakes in a complex terrain using large eddy simulation

Arslan Salim Dar, Jacob Berg*, Niels Troldborg, Edward G. Patton

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

We perform large eddy simulation of flow in a complex terrain under neutral atmospheric stratification. We study the self-similar behavior of a turbine wake as a function of varying terrain complexity and perform comparisons with a flat terrain. By plotting normalized velocity deficit profiles in different complex terrain cases, we verify that self-similarity is preserved as we move downstream from the turbine. We find that this preservation is valid for a shorter distance downstream compared to what is observed in a flat terrain. A larger spread of the profiles toward the tails due to varying levels of shear is also observed.
Original languageEnglish
JournalWind Energy Science
Volume4
Pages (from-to)633-644
Number of pages12
ISSN2366-7443
DOIs
Publication statusPublished - 2019

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