高分子水溶液の多段屈曲流路流れにおける流体混合の可視化観察(流体工学,流体機械)

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  • Flow Visualization of Fluid Mixing in Curvilinear Pipe Flow of Polymer Solution(Fluids Engineering)
  • 高分子水溶液の多段屈曲流路流れにおける流体混合の可視化観察
  • コウブンシ スイヨウエキ ノ タダン クッキョク リュウロ ナガレ ニ オケル リュウタイ コンゴウ ノ カシカ カンサツ

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The fluid mixing in a curvilinear pipe flow of polymer solutions was investigated using the flow visualization. The number of curves N was set at 1, 6, 32 and 60. As a viscoelastic fluid, polyacrylamide (PAA) solutions of 0.05 and 0.1wt% were used. It was found that the drastic change of the secondary flow pattern strongly promoted the fluid mixing at N=60 for PAA solutions. The Reynolds number, at which the fluid mixing was promoted, became smaller with the increase in concetration of polymer solution.

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