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IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence DynamicsMULTI MODES FOR THE VORTEX SHEET-TUBE TRANSFORMATION PROCESS AND VISCOELASTIC EFFECT

IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence... [A process for formation of the stretched spiral vortex was investigated using the DNS data of homogeneous turbulence. It was shown that vortex tube was generated not by a rolling up of single vortex sheet but through an interaction of dual sheets. Depending on the alignment of vorticity vectors on vortex tube and vortex sheets which emanate from vortex tube, three modes of configuration were shown to exist. Frequency of appearance of three modes and its implication for turbulence generation was discussed in isotropic and sheared flows.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

IUTAM Symposium on Elementary Vortices and Coherent Structures: Significance in Turbulence DynamicsMULTI MODES FOR THE VORTEX SHEET-TUBE TRANSFORMATION PROCESS AND VISCOELASTIC EFFECT

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Publisher
Springer Netherlands
Copyright
© Springer 2006
ISBN
978-1-4020-4180-8
Pages
13 –18
DOI
10.1007/1-4020-4181-0_2
Publisher site
See Chapter on Publisher Site

Abstract

[A process for formation of the stretched spiral vortex was investigated using the DNS data of homogeneous turbulence. It was shown that vortex tube was generated not by a rolling up of single vortex sheet but through an interaction of dual sheets. Depending on the alignment of vorticity vectors on vortex tube and vortex sheets which emanate from vortex tube, three modes of configuration were shown to exist. Frequency of appearance of three modes and its implication for turbulence generation was discussed in isotropic and sheared flows.]

Published: Jan 1, 2006

Keywords: Isotropic Turbulence; Vortex Tube; Vortex Sheet; Turbulence Generation; Vorticity Vector

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