Bifurcations from Taylor vortices between corotating concentric cylinders

摘要

Taylor vortex flow between corotating concentric cylinders bifurcates to a variety of wavy vortex flows. We have experimentally studied the vicinity of onset of these flows as the axial wavelength, the inner cylinder speed, and the outer cylinder speed are changed. The selection of secondary flows depends strongly on the Taylor vortex size. At small Taylor vortex wavelength an m=1 mode as well as a combination of modes are described. The wavy flows are the result of secondary instabilities that develop either at the inflow boundary, the outflow boundary, or inside of vortices near their cores.