| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
This study was focused on improvement of an open type cross-flow runner performance and feasibility study to simulate its vibration and noise with both of MPS method and experiment. The simulation employs a two-dimensional particle method. Flow in the turbine is successfully simulated, with the simulated turbine performance showing good agreement with experimental measurements. On the other hand, the noise and vibration could not be simulated accurately. We tried to calculate time history pressure on the surface of blades for estimation of these characteristics. However, too large pressure fluctuation was frequently occurred, and these characteristics could not obtain reasonable values. The problem may be caused by abnormally contacting between water type particles and wall type particles.
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