| 摘要 |
PROBLEM TO BE SOLVED: To provide a Kaplan turbine that reduces cavitation.SOLUTION: A Kaplan turbine comprises stay vanes 2, guide vanes 3, runner vanes 4, and a water conveyance cover 10. A guide vane outlet angle α in a vane height lower section 8 of each of the guide vanes 3 is smaller than a guide vane outlet angle &bgr; in a vane height upper section 9. |
