Results of the GABLS3 diurnal-cycle benchmark for wind energy applications: Paper

J. Sanz Rodrigo*, D. Allaerts, M. Avila, J. Barcons, Dalibor Cavar, R. A. Chávez Arroyo, M. Churchfield, B. Kosovic, J. K. Lundquist, J. Meyers, D. Munoz Esparza, Jmlm Palma, J. M. Tomaszewski, Niels Troldborg, M. P. Van Der Laan, C. Veiga Rodrigues

*Corresponding author for this work

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Abstract

We present results of the GABLS3 model intercomparison benchmark revisited for wind energy applications. The case consists of a diurnal cycle, measured at the 200-m tall Cabauw tower in the Netherlands, including a nocturnal low-level jet. The benchmark includes a sensitivity analysis of WRF simulations using two input meteorological databases and five planetary boundary-layer schemes. A reference set of mesoscale tendencies is used to drive microscale simulations using RANS k- and LES turbulence models. The validation is based on rotor-based quantities of interest. Cycle-integrated mean absolute errors are used to quantify model performance. The results of the benchmark are used to discuss input uncertainties from mesoscale modelling, different meso-micro coupling strategies (online vs offline) and consistency between RANS and LES codes when dealing with boundary-layer mean flow quantities. Overall, all the microscale simulations produce a consistent coupling with mesoscale forcings.
Original languageEnglish
Book seriesJournal of Physics: Conference Series
Volume854
Number of pages16
ISSN1742-6596
DOIs
Publication statusPublished - 2017
EventWake Conference 2017 - Visby, Sweden
Duration: 30 May 20171 Jun 2017
http://standupforwind.se/wake-conference-2017/

Conference

ConferenceWake Conference 2017
CountrySweden
CityVisby
Period30/05/201701/06/2017
Internet address

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