Mixing, stretching and chaos in wavy Taylor vortex flow

M. Rudman, G. Metcalfe, J. Tan, L. Graham

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Numerical and experimental investigation of the fluid flow, mixing and stretching in wavy Taylor vortex flow is presented which shows that the effective (chaotic) diffusion coefficient is a function of wave state. This result suggests that a universal relationship between dispersion and Reynolds number cannot be found in this regime of cylindrical Taylor-Couette flow. Fluid retention in the cores of the wavy vortices is also predicted, and fluid trapped in vortex cores is only poorly mixed within the core and plays no role in global mixing except via molecular diffusion. Experimental validation of the existence of vortex core regions in wavy vortex flow is presented for the first time. Mean fluid stretching is also calculated, although a quantitative relationship between stretching and effective axial diffusion is not apparent from the results.

Original languageEnglish
Title of host publicationProceedings of the 1998 Thirteenth Australasian Fluid Mechanics Conference, Melbourne, Australia, 13-18 December 1998 (Volume 2)
EditorsMC Thompson, K Hourigan, MC Thompson, K Hourigan
PublisherOCE, Monash University
Number of pages4
ISBN (Print)0732620449
Publication statusPublished - 1 Dec 1998
Externally publishedYes
EventAustralasian Fluid Mechanics Conference 1998 - Monash University, Melbourne, Australia
Duration: 13 Dec 199818 Dec 1998
Conference number: 13th


ConferenceAustralasian Fluid Mechanics Conference 1998
Abbreviated titleAFMC 1998

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