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Large Eddy Simulation of a wind tunnel wind farm experiment with one hundred static turbine models

Journal Contribution - Journal Article Conference Contribution

© Published under licence by IOP Publishing Ltd. A common challenge for the validation of wind farm simulations with field data is the complex, variable and not precisely defined inflow conditions. In this study, we make use of published wind tunnel data for a scaled farm with 100 porous disk models, and for highly controlled wind conditions, to validate a large eddy simulation. We present a simple methodology to simulate the spatially developing turbulent boundary layer from the experiment. The method makes it possible to match the vertical profiles of mean velocity and turbulence intensity in front of the farm. The mean-row power from the simulations shows a good agreement with the experimental results. We find that simulating the spatially developing boundary layer in a channel with the same height as the wind tunnel, instead of the common approach of a fully developed half-channel flow, is essential to match the experimental results. It is concluded that experiments with a naturally developing boundary layer and a clean flow above, provide well-defined conditions that can be simulated accurately in large eddy simulations and are useful for the validation of wind farm models.
Journal: Journal of Physics: Conference Series
ISSN: 1742-6588
Issue: 6
Volume: 1037
Publication year:2018
BOF-keylabel:yes
IOF-keylabel:yes
Authors from:Higher Education