ERIES - THRUST: The High Rotational Urban Savonius Turbine

This dataset comprises measured data from wind tunnel tests conducted between July and September 2023 at the “Giovanni Solari” Wind Tunnel Facility on a Savonius rotor wind turbine, having diameter 0.25 m, height 1 m. Key quantities investigated include: inlet wind speed, measured by a Pitot-static tube; rotor's rotational velocity, measured by Hall sensors; torque at the rotor axis, measured with a torquemeter, generated power, estimated from torque and rotational velocity; upstream and downstream flow velocities, recorded by hot wires; noise emissions that were recorded by four microphones downstream. Tests were performed across a range of wind tunnel velocities (up to 21 m/s) and rotor speeds (up to 2500 rpm), under smooth and turbulent flow, with turbulence intensity of approximately 4% and 8%.

Typically, each test begins when the wind tunnel reaches a steady-state speed and applying a predetermined load to the rotor. Once steady rotation is achieved, a 60-second measurement of the relevant quantities are recorded. The load is then increased, causing the turbine to settle at a new, lower rotational speed. After stabilization, another measurement is taken. This process is repeated incrementally, increasing the load step by step, until the turbine slows down to the point of near standstill.

The document readme.pdf supplies information on the data base and its use.