Mechanically driven active and passive grains as models for egress dynamics Mahdieh Mohammadi, Kirsten Harth, Dmitry Puzyrev, Torsten Trittel, Tina Hanselka and Ralf Stannarius EPJ Web Conf., 249 (2021) 03016 Published online: 07 June 2021 DOI: 10.1051/epjconf/202124903016