1401 界面活性剤水溶液中のヴィスコスフィンガリングの分岐現象(S30-1 複雑流体の流動現象(1),S30 複雑流体の流動現象)

概要

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When air pushes a more viscous fluid in two parallel plates by a syringe pump, viscous fingering pattern have been observed. Water and aqueous glycerin solutions are used as Newtonian fluids. Aqueous solutions of CTAB(Hexadecyletrimethylammonium Bromide) with NaSal as salt are used as non-Newtonian fluids. It was found that it showed the bifurcation of viscous fingering to be different by a kind of solution. And, it was found that the solution concentration, salt concentration, gap and air pressure influenced a bifurcation pattern. Furthermore, it was found a complicated bifurcation pattern in surfactant solution with higher salt concentration. Then, tip speed of bifurcation was high.
社団法人日本機械学会の論文
2007-09-07