Decaying quasi-2D turbulence in a stratified fluid with circular boundaries

S.R. Maassen; H.J.H. Clercx; G.J.F. Heijst, van

doi:10.1209/epl%2Fi1999-00266-0

Decaying quasi-2D turbulence in a stratified fluid with circular boundaries

S.R. Maassen, H.J.H. Clercx, G.J.F. Heijst, van

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Abstract

Laboratory experiments on decaying quasi-2D turbulence are performed in a stratified flow inside a circular container. The observed decay scenario and the shape of the quasi-stationary "final" state depend strongly on the amount of net angular momentum in the initial flow field. Furthermore, the angular momentum appears to be a better conserved quantity than the total kinetic energy. These experimental observations agree remarkably well with recently reported results based on numerical simulations of the 2D Navier-Stokes equations with no-slip boundary conditions.

Original language	English
Pages (from-to)	339-345
Number of pages	7
Journal	Europhysics Letters
Volume	46
Issue number	3
DOIs	https://doi.org/10.1209/epl%2Fi1999-00266-0 https://doi.org/10.1209/epl/i1999-00266-0
Publication status	Published - 1999

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title = "Decaying quasi-2D turbulence in a stratified fluid with circular boundaries",

abstract = "Laboratory experiments on decaying quasi-2D turbulence are performed in a stratified flow inside a circular container. The observed decay scenario and the shape of the quasi-stationary {"}final{"} state depend strongly on the amount of net angular momentum in the initial flow field. Furthermore, the angular momentum appears to be a better conserved quantity than the total kinetic energy. These experimental observations agree remarkably well with recently reported results based on numerical simulations of the 2D Navier-Stokes equations with no-slip boundary conditions.",

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AU - Maassen, S.R.

AU - Clercx, H.J.H.

AU - Heijst, van, G.J.F.

PY - 1999

Y1 - 1999

N2 - Laboratory experiments on decaying quasi-2D turbulence are performed in a stratified flow inside a circular container. The observed decay scenario and the shape of the quasi-stationary "final" state depend strongly on the amount of net angular momentum in the initial flow field. Furthermore, the angular momentum appears to be a better conserved quantity than the total kinetic energy. These experimental observations agree remarkably well with recently reported results based on numerical simulations of the 2D Navier-Stokes equations with no-slip boundary conditions.

AB - Laboratory experiments on decaying quasi-2D turbulence are performed in a stratified flow inside a circular container. The observed decay scenario and the shape of the quasi-stationary "final" state depend strongly on the amount of net angular momentum in the initial flow field. Furthermore, the angular momentum appears to be a better conserved quantity than the total kinetic energy. These experimental observations agree remarkably well with recently reported results based on numerical simulations of the 2D Navier-Stokes equations with no-slip boundary conditions.

U2 - 10.1209/epl%2Fi1999-00266-0

DO - 10.1209/epl%2Fi1999-00266-0

M3 - Article

SN - 0295-5075

VL - 46

SP - 339

EP - 345

JO - Europhysics Letters

JF - Europhysics Letters

IS - 3

ER -

Decaying quasi-2D turbulence in a stratified fluid with circular boundaries

Abstract

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