Competition between traveling fluid waves of left and right spiral vortices and their different amplitude combinations |
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Authors: | Pinter A Lücke M Hoffmann Ch |
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Institution: | Institut für Theoretische Physik, Universit?t des Saarlandes, Postfach 151150, D-66041 Saarbrücken, Germany. |
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Abstract: | Stability, bifurcation properties, and the spatiotemporal behavior of different nonlinear combination structures of spiral vortices in the counterrotating Taylor-Couette system are investigated by full numerical simulations and by coupled amplitude-equation approximations. Stable cross-spiral structures with continuously varying content of left- and right-spiral modes are found. They provide a stability transferring connection between the initially stable, axially counterpropagating wave states of pure spirals and the axially standing waves of so-called ribbons that become stable slightly farther away from the onset of vortex flow. |
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