Interaction between large wind farms and the atmospheric boundary layer

Fernando Porté-Agel, Hao Lu, Yu Ting Wu

Research output: Contribution to journalConference articlepeer-review

37 Citations (Scopus)

Abstract

Accurate prediction of atmospheric boundary layer (ABL) flow and its interactions with wind turbines is of great importance for optimizing the design and efficiency of wind farms. This study first focuses on recent efforts to develop and validate a large-eddy simulation (LES) framework for wind-energy applications. The subgrid-scale turbulent fluxes of momentum and heat are parameterized using tuning-free dynamic models. The turbine-induced forces are parameterized using two types of models: an actuator disk model that allows for non-uniform force distribution and includes rotational effects, and an actuator line model. The LES framework is validated against windtunnel measurements collected inside and above a large model wind farm. Further, this framework is used to study wind-farm effects. Comparison of simulations of flow through both aligned and staggered wind farms shows important effects of farm layout on the flow structure and wind-turbine performance. We also investigate the impacts of wind farms on a stable ABL and a convective ABL.

Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalProcedia IUTAM
Volume10
DOIs
Publication statusPublished - 2014
Event23rd International Congress of Theoretical and Applied Mechanics: Mechanics for the World, ICTAM 2012 - Beijing, China
Duration: 2012 Aug 192012 Aug 24

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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