Pump waterjet propulsion double hydrofoil shallow groundwater aircraft carrier
A water jet propulsion and water jet propulsion technology, which is applied in the field of "pump jet propulsion with fixed-wing helicopters, can solve the problems of high power, complex structure, and no air cushion for hovercraft.
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[0029] 5.1 Assume referring to the data of a certain nuclear submarine, it is changed to a conventional powered diving aircraft carrier, with a displacement of 5,500 tons, a total length of 106 meters, a body width of 10 meters, an underwater speed of 25 knots, a total shaft power of 15,000 horsepower, and a single aircraft of 7,500 horsepower.
[0030] 5.2 Seek propulsion. Diving sailing will overcome water resistance, according to Newton's third law F=75N / V, wherein N=7500HP, substituting, two pumps can provide 2F=75*7500 / 12.85*2=87548kgf=87.55 tons of force. Thrust-to-weight ratio i=87.55 / 5500=1 / 62.82 for diving and sailing. When fighter jets are cruising, i=1 / 4. It can be seen that the thrust-to-weight ratio of water navigation is much smaller than that of airplanes. After all, the two speeds are different.
[0031] 5.4 Provide N=7500HP according to each pump, the total efficiency of the pump is set to η=0.83, and the pressure P=100kgf / cm 2 Choose a secondary pump, and t...
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