| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
This study developed the general bottom velocity calculation method which can calculate vertical distributions of velocity and pressure in the depth integrated model to calculate three dimensional flow and local scouring around structures. The method was validated for rapidly varied flows over structures and 3D vortex motions with the horse show vortex around a pier. This study also developed a non-equilibrium bed load formula based on momentum equations of sediment particles moving as bed load. The bed variation calculation method coupling with the bottom velocity calculation method was successfully applied to bed variation problems which have been difficult to be calculated by depth integrated model, such as various bed form calculation, bed variation in a compound meandering channel, local scouring around structures.
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