両管が回転する同心二重管内の流れ : 第1報,同方向に回転する場合

概要

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The flow between concentric cylinders with both cylinders rotating in the same direction has been studied by visualization and velocity measurement. We used slit illumination for flow observation and pitot ant hot wire probe for velocity measurement and pitot hot wire probe for velocity measurement and yield the following results. When the outer cylinder rotates faster than the inner cylinder, the flow is stabilized and laminar flow region is fairly wide but there is a fluctuation which is too small to observe. The boundary which spiral turbulence occurs has marked hysteresis and changes with using fluid. Taylor vortices which occur when the inner cylinder rotates faster than the outer cylinder usually have vortex boundary dislocations. The outer region of the gap is affected by the Tayler vortex faster the the inner region.
社団法人日本機械学会の論文
1985-01-25