Experimental Validation of a 3D-CFD Model of a PEM Fuel Cell Matteo Riccardi, Alessandro d’Adamo, Andrea Vaini, Marcello Romagnoli, Massimo Borghi and Stefano Fontanesi E3S Web Conf., 197 (2020) 05004 Published online: 22 October 2020 DOI: 10.1051/e3sconf/202019705004