CFD Analysis to explain the Operating range extension observed during Operation in Co-rotating Mode of a Twin-impeller Centrifugal CompressorVan-Thang Nguyen, Amelie Danlos, Florent Ravelet, Michael Deligant, Moises Solis, Sofiane Khelladi and Farid BakirE3S Web Conf., 321 (2021) 02011DOI: https://doi.org/10.1051/e3sconf/202132102011