Numerical and experimental investigation of the flow separation over NREL's S822 aerofoil and its control by suction and blowingNazar Aldabash, Andrew Wandel, Abdul Salam Darwish and Jayantha EpaarachchiRenew. Energy Environ. Sustain., 6 (2021) 5DOI: https://doi.org/10.1051/rees/2020006