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American Physical Society, Physical review E: Statistical, nonlinear, and soft matter physics, 3(79)

DOI: 10.1103/physreve.79.036309

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Families of subcritical spirals in highly counter-rotating Taylor-Couette flow

Journal article published in 2009 by Alvaro Meseguer, Fernando Mellibovsky ORCID, Marc Avila, Francisco Marques
This paper is available in a repository.
This paper is available in a repository.

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Abstract

A comprehensive numerical exploration of secondary finite-amplitude solutions in small-gap Taylor-Couette flow for high counter-rotating Reynolds numbers is provided, using Newton-Krylov methods embedded within arclength continuation schemes. Two different families of rotating waves have been identified: short axial wavelength subcritical spirals ascribed to centrifugal mechanisms and large axial scale supercritical spirals and ribbons associated with shear dynamics in the outer linearly stable radial region. This study is a first step taken in order to provide the inner structure of the skeleton of equilibria that may be responsible for the intermittent regime usually termed as spiral turbulence that has been reported by many experimentalists in the past.