| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2013: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2011: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
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| Research Abstract |
In this study, a generalized canopy model is proposed by the combination of a fluid force model to consider the drag forces caused by buildings and trees. The proposed canopy model is verified by wind tunnel tests and the onsite measurement. Turbulent flow fields of a tornado-like vortex are then investigated by using numerical tornado simulator and the gust is found to be very large near the center of the tornado-like vortex. Finally, a prediction method for strong gust based on onsite measurement and CFD is proposed. and predicted maximum gust shows good agreement with measurement. The proposed method is applied to the regulation of train operation and shows that the frequency of the regulation of the train operation decreases when the train speed is reduced and the wind fence is installed.
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