Numerical study on the effect of width of single curtain on the performance of Savonius wind turbineTriyogi Yuwono, Aip Abdul Latip, Nabila Prastiya Putri, Ubaidillah Muhammad, Erik Noer Mazhilna, Citro Ariyanto, Ulfa Andaryani and Anaz FauziMATEC Web Conf., 154 (2018) 01110DOI: https://doi.org/10.1051/matecconf/201815401110