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Axial dynamics of viscous vortices

  • Part II Structures in Hydrodynamic Turbulence
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Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence

Part of the book series: Lecture Notes in Physics ((LNP,volume 462))

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Abstract

Direct numerical simulations of viscous columnar vortices subject to a non uniform strain have shown that more or less uniform vortices can form even when the strain has zero spatial average, thus having compressing regions. According to the arguments of Jiménez & Wray (1994) this is due to the effect of axial waves that homogenize the core of the vortices regardless the fact that they are initially straight or not. In the present study it has been shown that the same mechanism works for unsteady strains, provided axial waves have enough time to develop along the vortex core.

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References

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Author information

Authors and Affiliations

  1. Dipartimento di Meccanica e Aeronautica, Università di Roma “La Sapienza”, via Eudossiana 18, 00184, Roma, Italy

    R. Verzicco

  2. School of Aeronautics, U. Politécnica, Pl. Cardenal Cisneros 3, 28040, Madrid, Spain

    J. Jiménez

Authors
  1. R. Verzicco
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  2. J. Jiménez
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Editor information

Maurice Meneguzzi Annick Pouquet Pierre-Louis Sulem

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© 1995 Springer-Verlag Berlin Heidelberg

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Verzicco, R., Jiménez, J. (1995). Axial dynamics of viscous vortices. In: Meneguzzi, M., Pouquet, A., Sulem, PL. (eds) Small-Scale Structures in Three-Dimensional Hydrodynamic and Magnetohydrodynamic Turbulence. Lecture Notes in Physics, vol 462. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0102402

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  • DOI: https://doi.org/10.1007/BFb0102402

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60486-0

  • Online ISBN: 978-3-540-47675-7

  • eBook Packages: Springer Book Archive

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