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Presentation at the Wake Conference, Visby, 1 June 2017. The associated paper can be found at: http://iopscience.iop.org/article/10.1088/1742-6596/854/1/012037 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-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. Overall, all the microscale simulations produce a consistent coupling with mesoscale forcings.
Technology, Science & Technology, WEATHER, Energy & Fuels, 0299 Other Physical Sciences, RANS, ABL, 0204 Condensed Matter Physics, BOUNDARY-LAYER, Wakebench, low-level jet, Engineering, Mechanical, MODEL, Engineering, LES, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, TURBULENCE, 51 Physical sciences
Technology, Science & Technology, WEATHER, Energy & Fuels, 0299 Other Physical Sciences, RANS, ABL, 0204 Condensed Matter Physics, BOUNDARY-LAYER, Wakebench, low-level jet, Engineering, Mechanical, MODEL, Engineering, LES, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, TURBULENCE, 51 Physical sciences
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