An analysis of aerodynamic characteristics to operate technical fiber

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560215
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Ishikawa National College of Technology
• Principal Investigator: HATTA Kiyoshi 石川工業高等専門学校, その他部局等, 教授 (80280379)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 空気摩擦抗力 / 産業用繊維 / 空気流 / 繊維機械 / 自動化省力化

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.

Free Research Field

制御工学