1111 隙間を通過する流体の複屈折観察

概要

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Birefringence of a viscoelastic fluid was measured in a flow through a slit. CTAB(cetyltrimethylammonium bromide, 0.01mol/l) : NaSal(sodium salicylate, 0.07mol/l) water solution was used as a test fluid. Since thread-like micelles are constructed in this system, the test fluid shows viscoelasticity. First normal stress difference and shear stress of CTAB : NaSal solution were measured by the jet thrust method and the capillary method, and the viscoelasticity was confirmed. Measurements of birefringence were performed along the centerline of jet issuing from the slit at various flow velocities. It is thought that disintegration of thread-like micelles occurs in the slit when the flow velocity was high, and reconstruction of thread-like micelles appears downstream of the exit.
一般社団法人日本機械学会の論文
2002-09-20