二液テイラー渦流れの不安定性 : 第1報, 円筒の両端が固定端の場合(流体工学, 流体機械)

概要

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The present study concerns an experimental investigation of the instability of a Taylor vortex flow with two immiscible fluids. The fluids are used containing aqueous solution of glycerol and silicone oil. The experiments are made in a symmetric system and at a range of the aspect ratio approximately from 4 to 6. As results, a cell configuration is clarified by flow visualization, and through a surprising phenomenon where there are opposite directions of flow on a boundary surface between the fluids. The heights of cells are measured to clarify the instability of the vortices. The critical Reynolds number at which the primary mode is mutually bifurcated to the secondary mode and another critical Reynolds number at which the secondary mode changes to the wavy Taylor vortex flow are investigated. These results are compared with the features of the Taylor vortex flow with one fluid and are similar to those in an asymmetric system. But the phenomenon that there are two flow directions on the boundary surface has never been reported.
社団法人日本機械学会の論文
1997-08-25