アスペクト比が小さいテイラー渦の実験 : 第1報,自由端と固定端の場合の比較

概要

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Various steady flow fields of Taylor vortex flow between concentric cylinders have been investigated by means of a flow visualization technique. The experiments have been made on an apparatus of particular small aspect ratio Γ, with the aim of comparing the Taylor vorticies between asymmetric and symmetric end conditions, that is, the cell structure, cell formation processes, and variation of cell heights relative to Reynolds number Re. In the asymmetric case the cell structure has mainly odd number cells, and also even number cells in the limited range of Γ and Re. For even number cells in the asymmetric case, curious facts are revealed as anomalous modes which have flow direction near the end and outward, that is, opposite to the primary flow direction. And in the symmetric case the cell structure has only even number cells. The formation process which depends symmetric case the cell structure has only even number cells. The formation process which depends on the Γ and end condition, has three types in the asymmetric case and only one in the symmetric case.
一般社団法人日本機械学会の論文
1988-08-25