For designing an (offshore) wind turbine you have to consider fatigue loads as well as extreme loads. In order to calculate these loads you need to know the properties of wind shear and turbulence as well as the extreme wind conditions.
Possible further directions for our research on wind conditions:
- Meteo conditions
- Several studies have shown that it is important to include atmospheric stability in the energy yield estimation as well as a fatigue analysis (see link naar tab Flow). The next step is to determine the distribution of the atmospheric stability at some specific site. It is not feasible to use for every new site a met-mast so instead for this purpose meso-scale modelling can be run for 1 to 2 years over a large area (say the entire North-Sea). Next the stability statistics can be obtained from the simulations.
- The present size of wind turbines is such that they do not operate entirely in the surface layer, so a formulation of the wind conditions for the entire boundary layer is required. For wind shear such kind of formulation is available (see link naar tab Flow). An expression for the variation of turbulence intensity for the entire boundary layer is needed as well.
- The description of wind shear and turbulence intensity perform well except for (very) stable conditions. An improved model for (very) stable conditions is required.
- Application of synthetic wind fields for CFD
- Occurrence probability of gusts
- Energizing the wake of a wind farm