• Small scale wind turbine: Rotor blade design for maximum performance specifically at low wind speeds

  • Meshing of rotating blade domain and stationary farfield

  • Parameter based geometry generation for automated optimization process chain

  • Circumferential averaged axial velocity flowfield at design point conditions

Aerodynamic design of rotor blades for a 1kW small scale wind turbine specifically designed for low wind speeds typically for urban locations. The blades are designed by an automated 3D multiobjective optimization in several operation points with regard to max. efficiency over a broad range of wind speeds and an aerodynamically robust design. The simulation approach is unusual for wind turbines, because a compressible CFD code is applied. This rarely used setup is numerically more difficult to handle, but allows a superior prediction of profile performance due to not neglecting local density changes that occur on the blade surface.