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IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence DynamicsINTERACTION BETWEEN A COLUMNAR VORTEX AND EXTERNAL TURBULENCE

IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence... [The interaction between a columnar vortex and external turbulence is investigated numerically. As columnar vortices, the Lamb-Oseen vortex and the q-vortex are used. The columnar vortex is immersed in an initially isotropic homogeneous turbulence field, which itself is produced by a direct numerical simulation of decaying turbulence. Using visualization techniques, we investigate the formation of inhomogeneous fine turbulent eddies around the columnar vortex, vortex-core deformations and the dynamical evolution in the passive scalar field.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence DynamicsINTERACTION BETWEEN A COLUMNAR VORTEX AND EXTERNAL TURBULENCE

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Publisher
Springer Netherlands
Copyright
© Springer 2006
ISBN
978-1-4020-4180-8
Pages
31 –38
DOI
10.1007/1-4020-4181-0_4
Publisher site
See Chapter on Publisher Site

Abstract

[The interaction between a columnar vortex and external turbulence is investigated numerically. As columnar vortices, the Lamb-Oseen vortex and the q-vortex are used. The columnar vortex is immersed in an initially isotropic homogeneous turbulence field, which itself is produced by a direct numerical simulation of decaying turbulence. Using visualization techniques, we investigate the formation of inhomogeneous fine turbulent eddies around the columnar vortex, vortex-core deformations and the dynamical evolution in the passive scalar field.]

Published: Jan 1, 2006

Keywords: Direct Numerical Simulation; Vortex Core; Vortical Structure; Passive Scalar; Linear Instability

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