Vortex stretching and reconnection in a compressible fluid

    Authors

    B. K. Shivamoggi

    Comments

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    Abbreviated Journal Title

    Eur. Phys. J. B

    Keywords

    MAGNETIC-FIELD RECONNECTION; ISOTROPIC TURBULENCE; VORTICES; DYNAMICS; FLOW; INSTABILITIES; STABILITY; DRIVEN; STRAIN; TUBES; Physics, Condensed Matter

    Abstract

    Vortex stretching in a compressible fluid is considered. Two-dimensional (2D) and axisymmetric cases are considered separately. The flows associated with the vortices are perpendicular to the plane of the uniform straining flows. Externally-imposed density build-up near the axis leads to enhanced compactness of the vortices - "dressed" vortices (in analogy to "dressed" charged particles in a dielectric system). The compressible vortex flow solutions in the 2D as well as axisymmetric cases identify a length scale relevant for the compressible case which leads to the Kadomtsev-Petviashvili spectrum for compressible turbulence. Vortex reconnection process in a compressible fluid is shown to be possible even in the inviscid case - compressibility leads to defreezing of vortex lines in the fluid.

    Journal Title

    European Physical Journal B

    Volume

    49

    Issue/Number

    4

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    483

    Last Page

    490

    WOS Identifier

    WOS:000242300800012

    ISSN

    1434-6028

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