The mechanism of boundary-layer transition and the behaviour of spiral vortices on spheres rotating in otherwise undistributed fluid were investigated experimentally. Critical and transition Reynolds numbers which determine the laminar-turbulent transition regime on the sphere surface were measured. In addition the number of spiral vortices on the sphere and the direction of the vortex axis were clarified.
|Journal||Reports of the Laboratory for Air-Flow Measurements, the Institute of High Speed Mechanics, Tohoku University|
|Publication status||Published - 1988|
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