Abstract
Numerical investigations of stationary Taylor vortex flows with periodic boundary conditions led Meyer-Spasche/Wagner [13] to speculate that there is a curve of loci of secondary bifurcations in the (period, Reynolds number)-plane which connects two double points, i.e. two intersection points of neutral curves of flows with different numbers of vortices (n-vortex flows, n = 2, 4, and a double vortex flow). Lortz et al. [12] proved analytically the existence of such a curve for a model problem derived from the equations of the Boussinesq approximation, and also the existence of a second such curve.
It remained unclear then if the results carry over to the full Boussinesq system and thus to the narrow-gap approximation, and how the results generalize to flows with other numbers of vortices. These questions were treated in [14]. In the present contribution we continue these investigations and present computations that justify speculations in [14] about the structure of other secondary interactions. We also present a curve of Hopf bifurcation points which was found in the course of computations discussed here, as a by-product.
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Meyer-Spasche, R., Bolstad, J.H., Pohl, F. (2000). Secondary bifurcations of stationary flows. In: Egbers, C., Pfister, G. (eds) Physics of Rotating Fluids. Lecture Notes in Physics, vol 549. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45549-3_11
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DOI: https://doi.org/10.1007/3-540-45549-3_11
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