This study presents numerical simulation of bubbly flow in a rolling channel. Two-fluid equations were modified to perform simulations in the non-inertial coordinates. The best two-phase model set for the interfacial momentum transfer were determined through simulations for experimental data in stationary channels, and were applied to the flow in the rolling channel. It was observed that the rolling motion of the channel decreased the void fraction Numerical simulation showed that the averaged void fraction in the rolling channel is lower than that of the stationary channel.