Abstract
A study was conducted on three generic vortex ring configurations and found that in all cases the rings reconnect. In addition, an intensification of dissipation which was local in time and could be a mechanism contributing to turbulence intermittency was observed. Thus, a by-product of reconnection was the formation of stretched structures with antiparallel vorticity which transfer energy to the smallest scales where it was rapidly dissipated. Without this energy redistribution in wave number space the decay of global kinetic energy would be slower.
| Language | English |
|---|---|
| Article number | 054501 |
| Pages | 1-4 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 90 |
| Issue number | 5 |
| Publication status | Published - 7 Feb 2003 |
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Keywords
- algorithms
- computational fluid dynamics
- graph theory
- incompressible flow
- integral equations
- Navier-Stokes equations
- Reynolds number
- three dimensional
- turbulence
- viscosity of liquids
- viscous flow
- Kelvin waves
- stretched antiparallel vorticity
- three dimensional incompressible viscous flow
- vortex rings
- vortex flow
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Reconnection of colliding vortex rings. / Chatelain, P.; Kivotides, D.; Leonard, A.
In: Physical Review Letters, Vol. 90, No. 5, 054501, 07.02.2003, p. 1-4.Research output: Contribution to journal › Article
TY - JOUR
T1 - Reconnection of colliding vortex rings
AU - Chatelain, P.
AU - Kivotides, D.
AU - Leonard, A.
PY - 2003/2/7
Y1 - 2003/2/7
N2 - A study was conducted on three generic vortex ring configurations and found that in all cases the rings reconnect. In addition, an intensification of dissipation which was local in time and could be a mechanism contributing to turbulence intermittency was observed. Thus, a by-product of reconnection was the formation of stretched structures with antiparallel vorticity which transfer energy to the smallest scales where it was rapidly dissipated. Without this energy redistribution in wave number space the decay of global kinetic energy would be slower.
AB - A study was conducted on three generic vortex ring configurations and found that in all cases the rings reconnect. In addition, an intensification of dissipation which was local in time and could be a mechanism contributing to turbulence intermittency was observed. Thus, a by-product of reconnection was the formation of stretched structures with antiparallel vorticity which transfer energy to the smallest scales where it was rapidly dissipated. Without this energy redistribution in wave number space the decay of global kinetic energy would be slower.
KW - algorithms
KW - computational fluid dynamics
KW - graph theory
KW - incompressible flow
KW - integral equations
KW - Navier-Stokes equations
KW - Reynolds number
KW - three dimensional
KW - turbulence
KW - viscosity of liquids
KW - viscous flow
KW - Kelvin waves
KW - stretched antiparallel vorticity
KW - three dimensional incompressible viscous flow
KW - vortex rings
KW - vortex flow
UR - http://www.scopus.com/inward/record.url?scp=0037422909&partnerID=8YFLogxK
M3 - Article
VL - 90
SP - 1
EP - 4
JO - Physical Review Letters
T2 - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 5
M1 - 054501
ER -