1418 高分子流体の球間隙における流れの特性(S30-4 複雑流体の流動現象(4),S30 複雑流体の流動現象)

概要

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The flow configurations in a gap between coaxially rotating inner spheres and stationary outer sphere were studied experimentally for flows with glass fiber suspended polymeric fluid. In the present study, relatively low concentration polyacryamid-water solutions with glass fiber suspension are used as test fluids. In experiment, two spherical gap sizes are adopted, and Reynolds number, aspect rate of glass fiber were changed accordingly. The frictions torque with inner sphere was measured. From measurement results of friction torque, polymeric fluids follow the power-law model in low Reynolds's number region in two spherical gap ranges. If the aspect ratio becomes bigger, the suspension tends to deport from the power-law model approximation.
社団法人日本機械学会の論文
2007-09-07