過渡的平面スクイーズ流れにおけるCTAB/NaSal水溶液の流動誘起構造(OS.13 溶液・分散系のマイクロ・ナノ構造と流れの相互作用)

概要

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CTAB/NaSal aqueous solution that forms worm-like micelles at a certain concentration shows remarkable viscoelastic property and it causes flow-induced structure change. In this report, the flow-induced structure in transient squeezing flow was investigated. The opaque regions that occurred by flow-induced structure have been observed only in the shear dominant region of squeezing flow and Couette flow so far. However, flow-induced structure was appeared also in the elongation dominant region, I.e. elongated plane in transient squeezing flow. The flow-induced structure and instability strongly occurred when both deformation and its rate become higher than a certain value. They were visualized by using laser light sheet and recorded by digital video camera. The quantitative estimation for the opaque region was also carried out as investigating the change of light intensity.
一般社団法人日本機械学会の論文
2004-03-03