FRICTIONAL RESISTANCE REDUCED SHIP

摘要

PROBLEM TO BE SOLVED: To provide a frictional resistance reduced ship efficiently reducing frictional resistance and suppressing the construction cost of a hull. SOLUTION: This frictional resistance reduced ship M is provided with a bubble generating device 11 for discharging bubbles 42 to a submerged surface 12. The bubble generating device 11 is provided with a front stage part 22 and a rear stage part 23 formed to project into water from a hull 10, and a discharge port 31 communicating with a gas space AR. Since a negative pressure part 41 is formed near the discharge port 31 by flow 40 acting on the hull 10, gas in the gas space AR is led to the negative pressure part 41. At this time, a separation area H of water is formed by a front stage side tip part 22a, so that the bubbles 42 discharged from the discharge port 31 become small in diameter.