The invention relates to a device and a method for reducing the wave-making resistance of a warship, which includes a
hull, the lower part of the bow of the ship
hull is provided with a forward projecting mechanism extending out of the ship
hull, and an inner cavity is arranged inside the protruding mechanism, the inner cavity is communicated with an air source arranged in the hull through a gas
pipe, A gas flow regulating device is arranged on the trachea, the protruding mechanism is provided with a
nozzle communicated with the inner cavity, The invention is used for ejecting bubbles to change the height, phase and frequency of the first wave of the warship, and the
aspect ratio of the warship to achieve the purpose of reducing the
wave resistance, and the ejected bubbles can reduce the
frictional resistance of the surface warship, increase the speed of the surface warship, save the
energy consumption and carbon emission in the shipping process, and the gas source is provided with anozone generator. When needed,
ozone is injected through the
nozzle along with the bubbles to reduce the breeding of
aquatic organisms, reduce the daily maintenance
workload, reduce fuel consumption ofships, increase ship speed and reduce emissions.