Cross-linking of two antiparallel vortex tubes

M. V. Melander; Fazle Hussain

doi:10.1063/1.857437

Cross-linking of two antiparallel vortex tubes

M. V. Melander, Fazle Hussain

Houston Methodist

Research output: Contribution to journal › Article › peer-review

109 Scopus citations

Abstract

The detailed mechanisms in vortex cross-linking are unveiled by adequately resolved, direct numerical simulation of two viscous vortex tubes. There are three characteristic phases: (i) inviscid induction followed by core flattening and stretching; (ii) bridging of the two vortices by accumulation of annihilated and then cross-linked vortex lines; and (iii) threading of the remnants of the initial vortex pair in between the two bridges as they pull apart. These phases and the role of threading - along with bridging - in the mixing and the enstrophy cascade are explained, and it is shown that the mechanism is insensitive to asymmetries.

Original language	English (US)
Pages (from-to)	633-636
Number of pages	4
Journal	Physics of Fluids A
Volume	1
Issue number	4
DOIs	https://doi.org/10.1063/1.857437
State	Published - 1989

ASJC Scopus subject areas

General Engineering

Access to Document

10.1063/1.857437

Cite this

@article{e037f44f8fbb40459a3b19f0210b7632,

title = "Cross-linking of two antiparallel vortex tubes",

abstract = "The detailed mechanisms in vortex cross-linking are unveiled by adequately resolved, direct numerical simulation of two viscous vortex tubes. There are three characteristic phases: (i) inviscid induction followed by core flattening and stretching; (ii) bridging of the two vortices by accumulation of annihilated and then cross-linked vortex lines; and (iii) threading of the remnants of the initial vortex pair in between the two bridges as they pull apart. These phases and the role of threading - along with bridging - in the mixing and the enstrophy cascade are explained, and it is shown that the mechanism is insensitive to asymmetries.",

author = "Melander, {M. V.} and Fazle Hussain",

year = "1989",

doi = "10.1063/1.857437",

language = "English (US)",

volume = "1",

pages = "633--636",

journal = "Physics of Fluids A",

issn = "0899-8213",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Cross-linking of two antiparallel vortex tubes

AU - Melander, M. V.

AU - Hussain, Fazle

PY - 1989

Y1 - 1989

N2 - The detailed mechanisms in vortex cross-linking are unveiled by adequately resolved, direct numerical simulation of two viscous vortex tubes. There are three characteristic phases: (i) inviscid induction followed by core flattening and stretching; (ii) bridging of the two vortices by accumulation of annihilated and then cross-linked vortex lines; and (iii) threading of the remnants of the initial vortex pair in between the two bridges as they pull apart. These phases and the role of threading - along with bridging - in the mixing and the enstrophy cascade are explained, and it is shown that the mechanism is insensitive to asymmetries.

AB - The detailed mechanisms in vortex cross-linking are unveiled by adequately resolved, direct numerical simulation of two viscous vortex tubes. There are three characteristic phases: (i) inviscid induction followed by core flattening and stretching; (ii) bridging of the two vortices by accumulation of annihilated and then cross-linked vortex lines; and (iii) threading of the remnants of the initial vortex pair in between the two bridges as they pull apart. These phases and the role of threading - along with bridging - in the mixing and the enstrophy cascade are explained, and it is shown that the mechanism is insensitive to asymmetries.

UR - http://www.scopus.com/inward/record.url?scp=0000640284&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000640284&partnerID=8YFLogxK

U2 - 10.1063/1.857437

DO - 10.1063/1.857437

M3 - Article

AN - SCOPUS:0000640284

SN - 0899-8213

VL - 1

SP - 633

EP - 636

JO - Physics of Fluids A

JF - Physics of Fluids A

IS - 4

ER -

Cross-linking of two antiparallel vortex tubes

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this