Arching in three-dimensional clogging János Török, Sára Lévay, Balázs Szabó, Ellák Somfai, Sandra Wegner, Ralf Stannarius and Tamás Börzsönyi EPJ Web Conf., 140 (2017) 03076 Published online: 30 June 2017 DOI: 10.1051/epjconf/201714003076