FRICTION REDUCING SHIP AND METHOD FOR REDUCING FRICTIONAL RESISTANCE

摘要

PURPOSE: A friction reducing ship and method for reducing frictional resistance is provided to reduce the motive power required for generating the micro-bubbles, and envelope a wider bottom surface of a ship with micro-bubbles, while improving fuel saving brought about by reducing the frictional resistance. CONSTITUTION: A friction reducing ship reduces frictional resistance between an external hull plate(1) and water(W) by ejecting air(A) from the external hull plate into water to generate micro-bubbles(B) on the surface of the external hull plate. A structural feature of the ship is that micro-bubbles are generated by creating a negative pressure region in the water admitted in a water intake opening(2a), disposed below the waterline(WL) in a bow section(1a), so as to eject atmospheric air above the water into the water to generate micro-bubbles(B), and discharging the micro-bubbles together with water to a water discharge opening(2b) provided in a bottom section(1b).