Off-line washing effectiveness on a multistage axial compressor Nicola Aldi, Nicola Casari, Ettore Fadiga, Riccardo Friso, Stefano Oliani, Michele Pinelli, Pier Ruggero Spina, Alessio Suman, Alessandro Vulpio and Nicola Zanini E3S Web Conf., 312 (2021) 11016 Published online: 22 October 2021 DOI: 10.1051/e3sconf/202131211016