Improved Wind Resource Assessments by advances in Large Eddy Simulation (LES) modelling on GPUs

As the number and size of offshore wind farm clusters grow, so does the need to understand the full spectrum of flow phenomena and their interaction with the atmosphere. Large Eddy Simulation (LES) provides a technique that allows to simulate this full spectrum, including the effects of complex terrain, complex wakes, land-sea interaction, cluster and global blockage.

Expanding from LES into the meso-domain is a big step towards modeling the complete spectrum of meteorological conditions and events that are relevant for wind farm performance metrics, in one single model run. Complex sites like land-sea transitions, strongly non-homogeneous orography, or a combination of those, have now become more straightforward, overcoming some of the obvious problems a periodic boundary condition poses for these sites, while still computationally feasible. This presentation explains the details of the model development and results for wind resource assessment.