| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Outline of Final Research Achievements |
In this study, aerodynamics of a three-dimensional bluff body moving in a ground effect has been studied, especially focusing on transitional aerodynamic characteristics induced by a sudden event. Based on the important flow structures around an automobile, two groups of bluff bodies, which can reproduce a typical wake structure or pillar vortices, have been investigated. Lane-change maneuver, transitional change of relative wind direction, and free damped vibration in pitching motion were considered as target conditions for the sudden event. Transitional aerodynamic force acting on the bluff bodies in each condition have been investigated and flow structures that cause difference of the transitional aerodynamics have been clarified.
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