| Budget Amount *help |
¥11,700,000 (Direct Cost: ¥9,000,000、Indirect Cost: ¥2,700,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
In wind-induced disasters, flying debris cause serious damages in addition to direct forces of wind. The present study had promoted to develop a numerical fluid-structure interaction method as well as a wind tunnel experimental method to evaluate impact forces of flying debris. In order to take into account the dynamic fluid forces of a rotating arbitrary configuration of flying object and long flight path, the numerical domain travels with the flying object. The numerical domain contains a spherical interior domain which rotates with the flying object. The interface condition between the interior and exterior domains has been investigated. A numerical algorithm to evaluate impact force by the object has also been developed. In the wind tunnel experimental method, a strategy to measure impact forces has been developed.
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