螺旋推進器の効率に対する浅水影響の計算
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概要
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In the following paper, the author investigates mathematically the wave resistance of a propeller working in a shallow sea, and obtains an expression for the wave wake at the propeller centre produced by itself. The former results in the reduction of thrust, and the latter, owing to the increase of the actual speed of advance over the propeller disc, causes the reduction of thrust and torque of the working propeller. Taking these factors into account he clears up the problem of the shallow water effect upon the propeller efficiency. Numerical calculations are also carried out by him in several cases of propeller immersion and depth of water.
- 社団法人日本船舶海洋工学会の論文