Spiral vortices traveling between two rotating defects in the Taylor-Couette system

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Numerical calculations of vortex flows in Taylor-Couette systems with counter rotating cylinders are presented. The full, time dependent Navier-Stokes equations are solved with a combination of a finite difference and a Galerkin method. Annular gaps of radius ratio $η=0.5$ and of several heights are simulated. They are closed by nonrotating lids that produce localized Ekman vortices in their vicinity and that prevent axial phase propagation of spiral vortices. Existence and spatio temporal properties of rotating defects, of modulated Ekman vortices, and of the spiral vortex structures in the bulk are elucidated in quantitative detail.
9 pages, 9 figures

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Fluid Dynamics, Pattern Formation and Solitons, Computational Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/165167

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/physics/0505141
 http://arxiv.org/abs/physics/0505141
 Phys. Rev. E 72, 056311 (2005).
 doi:10.1103/PhysRevE.72.056311

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arXiv