Round-Robin test II – wake measurements of porous discs under clearly defined boundary conditions

Ten international teams participated in a second round-robin test with wake measurements behind two different types of actuator discs focusing on comparability of the experimental boundary conditions. Results show that even for such simple experiments small differences in the set-ups and inflow can lead to variations in the measurements. Nevertheless, a clear reduction in the deviations in maximum velocity deficit could be achieved for one disc compared to the first round-robin test from 2018.