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Comparison of Engineering Wake Models with CFD Simulations
Technical University of Denmark.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences. Technical University of Denmark.
Uppsala University, Disciplinary Domain of Science and Technology, Earth Sciences, Department of Earth Sciences.
Technical University of Denmark.
2014 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 524, 012161- p.Article in journal (Refereed) Published
Abstract [en]

The engineering wake models by Jensen [1] and Frandsen et al. [2] are assessed for different scenarios simulated using Large Eddy Simulation and the Actuator Line method implemented in the Navier-Stokes equations. The scenarios include the far wake behind a single wind turbine, a long row of turbines in an atmospheric boundary layer, idealised cases of an infinitely long row of wind turbines and infinite wind farms with three different spacings. Both models include a wake expansion factor, which is calibrated to fit the simulated wake velocities. The analysis highlights physical deficiencies in the ability of the models to universally predict the wake velocities, as the expansion factor can be fitted for a given case, but with not apparent transition between the cases. 1.

Place, publisher, year, edition, pages
2014. Vol. 524, 012161- p.
National Category
Physical Sciences Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:uu:diva-237701DOI: 10.1088/1742-6596/524/1/012161OAI: oai:DiVA.org:uu-237701DiVA: diva2:768580
Conference
The Science of Making Torque from Wind 2014, Copenhagen, Denmark, June 17-20 2014
Funder
StandUp for Wind
Available from: 2014-12-04 Created: 2014-12-04 Last updated: 2017-12-05Bibliographically approved

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Sørensen, JensIvanell, Stefan

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