Abstract
In this paper, the two-phase flow instability between multi-channels (FIBM) operating under ocean conditions is studied theoretically. The physical and mathematical model of the multi-channel system which is based on Lee and Pan [Lee, J.D., Pan, C., 1999. Dynamics of multiple parallel boiling channel systems with forced flows. Nuclear Engineering and Design 192, 31–44], is extended to analyze the influence of ocean conditions. The influence of ocean conditions on the FIBM is analyzed, particularly with respect to the periodic total mass flow rate and rolling motion. Furthermore, the instability oscillation trajectories of the multi-channel system are obtained on the phase plane of the inlet velocity and boiling boundary. Some of the trajectories show chaotic characteristic. The instability zone of a nine-channel system under rolling motion is then obtained.
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