|Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
|Outline of Final Research Achievements
This study aims to operate technical fiber of carbon fiber and aramid fiber and others by air flow. That enables to run, hold and move the fiber like conventional weaving technology of clothes. Therefore it is necessary to clarify the aerodynamic characteristic of the technical fiber. The air frictional drag coefficient of materials with the circular cross section can be expressed as a function of the radius Reynolds number which makes the fiber radius characteristic length. But they of materials with the rectangular cross section can be expressed as a function of the length Reynolds number which makes the fiber length characteristic length like flat plate. A condition of hold, the fiber radius, the tape width and the flexibility of the fiber can be named as the factor which has an influence on air drag coefficient. These are quite related to the "flutter" fiber vibrates by air flow.