Abstract: A wide range of white foam flow naturally appears around the ships sailing on the sea. This phenomenon involves multiphase flow components spanning very large scales, including water, air, bubbles, and atomized droplets. Moreover, it is closely associated with complex turbulence. In order to improve the understanding of ship foam flow, the formation reason, evolution mechanism, and the effect on the structures were expounded. This research will provide reference for solving the important issue in the exploration and utilization of marine environment in the future.

Key words: white foam flow; very large scale range; multiphase flow; turbulence flow