Dynamics of a two-phase flow through a minichannel: Transition from churn to slug flow Grzegorz Górski, Grzegorz Litak, Romuald Mosdorf and Andrzej Rysak Eur. Phys. J. Plus, 131 4 (2016) 111 Published online: 21 April 2016 DOI: 10.1140/epjp/i2016-16111-x