抄録
Since a thin radial liquid film flow on a stationary and rotating disk has the velocity profile of a boundary layer, a remarkable transition from laminar to turbulent flow occurs at a sufficiently large Reynolds number, being attributable to the amplification of disturbance inside the liquid film. The instability of the flow changes from a viscous-to an inflectional-type with increasing effect of the disk rotation on the flow. The former instability is essentially the same as that of the boundary layer on a flat plate in a stream, whereas the latter is similar to that of the three-dimensional boundary layer on a rotating disk in still fluid. In the present article, the feature of liquid surface in the transition region and characteristic properties of the disturbance detected through wall pressure fluctuation are reviewed in comparison with the linear stability theory.
