PROPULSION APPARATUS OF VESSEL

摘要

A propulsion apparatus of a vessel is introduced. The propulsion apparatus of a vessel comprises: a duct having a node which is a front vertex of a wing-shaped cross section and a tail which is a back vertex of the wing-shaped cross section, wherein the shape of the cross section of the duct includes an outer surface formed concavely upwards from a front end of the duct and formed concavely downwards from a back end of the duct; a duct inner front part formed convexly downwards from the front end of the duct; a duct inner back part formed convexly downwards from the back end of the duct; and a parallel part connecting the duct inner front part and the duct inner back part in parallel.