Frictional Resistance in Fiber Suspensions : 1st Report, Pipe flow
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概要
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Viscous properties and pipe flow resistance of fiber suspensions are experimentally investigated. We employ several synthetic fibers with various aspect ratios and microscopic asbestos fibers. The viscosity of fiber suspensions decreases with an increasing shear rate but it exhibits Newtonian viscous behavior at very high shear rate. The viscous property of synthetic fiber suspensions is correlated experimentally to the aspect ratios. In synthetic fibers, turbulent drag reduction is due to an increase in log profile's gradient. This increase is affected by their stiffness, aspect ratio, concentration and others. Their correlation is experimentally determined. In asbestos fibers, thickening of viscous and buffer layers also contributes to the drag reduction.
- 一般社団法人日本機械学会の論文
著者
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KATO Hiroshi
Faculty of Science, Kwansei Gakuin University
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Mizunuma Hiroshi
Faculty Of Engineering Tokyo Metropolitan University
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Mizunuma Hiroshi
Faculty Of Technology Tokyo Metropolitan University
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Kato Hiroshi
Faculty Of Engineering Tokyo Metropolitan University
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