多数のリング状板で構成した流路の流れ : エアジェット織機のエアガイドの基礎特性

概要

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The flow characteristics in a tube composed of numerous ring plates of uniform size at an interval of the same clearance are investigated experimentally. The friction coefficients and the radial distributions of the velocity are reported for fully developed flow with different clearances and wall taper angles. The friction coefficient is calculated from the momentum and the static pressure gradient of the flow. The results show that the mean velocity decreases with the axial distance exponentially, and that the wall taper angle at which the friction coefficient is minimum for various clearances is 2°. The radial distributions of the velocity agree with the logarithmic law of rough tubes for an angle of 2° and over.
社団法人日本機械学会の論文
1988-08-25