Title

Vortex stretching and reconnection in a compressible fluid

Authors

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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