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

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-ϵ 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. Altogether, all the microscale simulations produce a consistent coupling with mesoscale forcings.
 [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [1] ;  [5] ;  [6] ;  [7] ;  [8] ;  [6] ;  [2] ;  [9] ;  [4] ;  [4] ;  [2]
  1. National Renewable Energy Centre, Sarriguren (Spain)
  2. Univ. of Porto, Porto (Portugal)
  3. Barcelona Supercomputing Centre, Barcelona (Spain)
  4. Technical Univ. of Denmark, Roskilde (Denmark)
  5. National Renewable Energy Lab. (NREL), Boulder, CO (United States)
  6. National Centre for Atmospheric Research, Boulder, CO (United States)
  7. National Renewable Energy Lab. (NREL), Boulder, CO (United States); Univ. of Colorado, Boulder, CO (United States)
  8. Univ. of Leuven, Leuven (Belgium)
  9. Univ. of Colorado, Boulder, CO (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 1742-6588
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series
Additional Journal Information:
Journal Volume: 854; Journal ID: ISSN 1742-6588
IOP Publishing
Research Org:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Country of Publication:
United States
17 WIND ENERGY; GABLS3; wind energy; benchmark
OSTI Identifier: