“…Drag reduction can be achieved by using surfactants (Saeki et al [140], Drappier et al [141]), polymers (Virk [116], Berman [117], Benzi et al [118], Bonn et al [142], White & Mungal [143], Procaccia et al [144]) and bubbles (van den Berg et al [27], Ceccio [54], Madavan et al [55], Takahashi et al [56], van den Berg et al [61], Murai et al [62], Madavan et al [123], Sanders et al [125], Deutsch et al [126], Murai et al [139], Kato et al [145], Clark III & Deutsch [146], Latorre [147], Sugiyama et al [148], Elbing et al [149], Gutierrez-Torres et al [150], Jacob et al [151]). The proper implementation and understanding of drag reduction through bubbles is specially relevant for naval applications, since it can lead to significant reduction of the fuel consumed by ships without adding substances into water.…”