LES dataset of SMARTEOLE

Introduction This dataset contains the output of an Large-Eddy Simulation (LES) of the field campaign of the French national project SMARTEOLE (https://zenodo.org/records/7342466) performed with ASPIRE, an LES model operated by Whiffle. Description The exact simulation setup can be found in "aspforge.yml". The setup consists of two nested simulations. First, a mesoscale simulation is run using ERA5 reanalysis data. Second, an LES simulation is run using the mesoscale simulation. The grid resolutions (∆x, ∆y, ∆z), the domain dimensions (Lx, Ly , Lz ), and the number of grid cells (Nx, Ny , Nz ) in each spacial direction are shown in the table below. In the vertical direction, the grid resolution is stretched. The vertical spacing begins at Δz0 and, above the height z_constant, increases by a factor z_growth. Mesoscale domain LES domain Δx 2000 m 100 m Δy 2000 m 100 m Δz [50, 276] m [25, 76] m Lx 256 km 25.6 km Ly 256 km 25.6 km Lz 5 km 3 km Nx 128 256 Ny 128 256 Nz 44 73 Δz0 50 m 25 m z_constant 450 m 425 m z_growth 5 % 2 % The center of both domains is located at a longitude of 2.80122 and a latitude of 49.84033. A default power curve of a turbine with a diameter of 82 m, a rated power of 2.05 MW, and a hub height of 80 m is used. The turbines operate without wake steering. The coordinates of the turbines are shown in the table below. Turbine Latitude Longitude SMV1 49.84975 2.80194 SMV2 49.84661 2.8015 SMV3 49.84347 2.80162 SMV4 49.84033 2.80122 SMV5 49.83719 2.8008 SMV6 49.83477 2.79886 SMV7 49.83196 2.79934 The simulation is performed from 17-02-2020 to 25-05-2020. The data is sampled every 10 seconds, and for each data point, the average is taken over a 10-minute period. Each day is simulated seperately. The mesoscale simulation has a spin-up time of 6 hours, and the LES has a spin-up time of 1 hour. The figure "SMARTEOLE_simulation_setup.svg" shows the average wind speed at hub height for one day (17-02-2020) at the top, and a satellite image of the domain at the bottom. The left side of the figure is the mesoscale domain, and the right side is the LES domain. The blue square in the mesoscale domain indicates the relative size and location of the LES domain. The seven blue lines in the LES domain indicate the turbine positions. The folder "les_output" contains a NETCDF file for each simulated day. The folder is structured with subfolders for each year, month and day. For example, the output of 17-02-2020 can be found at "les_output\les_output\2020\02\17\00\turbinesOut.les.nc". Acknowledgement This work has been supported by the SUDOCO project, which receives funding from the European Union’s Horizon Europe Programme under the grant agreement No. 101122256. Further, this work is part of the Hollandse Kust Noord wind farm innovation program, where CrossWind C.V., Shell, Grow, Eneco and Siemens Gamesa are teaming up; funding for the PhDs was provided by CrossWind C.V. and Siemens Gamesa.