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

Wake Conference 2017

Rodrigo, J Sanz^1 ; Allaerts, D.^8 ; Avila, M.^4 ; Barcons, J.^4 ; Cavar, D.^5 ; Chávez Arroyo, R.A.^1 ; Churchfield, M.^2 ; Kosovic, B.^3 ; Lundquist, J.K.^2,6 ; Meyers, J.^7 ; Esparza, D Munoz^3 ; Palma, Jmlm^8 ; Tomaszewski, J.M.^6 ; Troldborg, N.^5 ; Van Der Laan, M.P.^5 ; Rodrigues, C Veiga^8

National Renewable Energy Centre, Sarriguren, Spain^1

National Renewable Energy Laboratory, Boulder

CO, United States^2

National Centre for Atmospheric Research, Boulder

CO, United States^3

Barcelona Supercomputing Centre, Barcelona, Spain^4

Technical University of Denmark, Roskilde, Denmark^5

University of Colorado Boulder, Boulder

CO, United States^6

University of Leuven, Leuven, Belgium^7

University of Porto, Porto, Portugal^8

关键词: Energy applications;    Mean absolute error;    Mesoscale modelling;    Microscale simulation;    Model inter comparisons;    Nocturnal low-level jets;    Planetary boundary layers;    Quantities of interests;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/854/1/012037/pdf
DOI  :  10.1088/1742-6596/854/1/012037

来源: IOP

【 摘 要 】

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.