Formation of Coherent Structures in Kolmogorov Flow with Stratification and Drag

Marco Sammartino; Vincenzo Sciacca; null Ponetti; null Sciacca; null Sammartino

Formation of Coherent Structures in Kolmogorov Flow with Stratification and Drag

Marco Sammartino, Vincenzo Sciacca, Ponetti, Sciacca, Sammartino

Risultato della ricerca: Article › peer review

Abstract

We study a weakly stratified Kolmogorov flow under the effect of a small linear drag. We perform a linear stability analysis of the basic state. We construct the finite dimensional dynamical system deriving from the truncated Fourier mode approximation. Using the Reynolds number as bifurcation parameter we build the corresponding diagram up to Re=100. We observe the coexistence of three coherent structures.

Lingua originale	English
pagine (da-a)	483-492
Numero di pagine	10
Rivista	Acta Applicandae Mathematicae
Volume	132
Stato di pubblicazione	Published - 2014

All Science Journal Classification (ASJC) codes

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title = "Formation of Coherent Structures in Kolmogorov Flow with Stratification and Drag",

abstract = "We study a weakly stratified Kolmogorov flow under the effect of a small linear drag. We perform a linear stability analysis of the basic state. We construct the finite dimensional dynamical system deriving from the truncated Fourier mode approximation. Using the Reynolds number as bifurcation parameter we build the corresponding diagram up to Re=100. We observe the coexistence of three coherent structures.",

author = "Marco Sammartino and Vincenzo Sciacca and Ponetti and Sciacca and Sammartino",

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T1 - Formation of Coherent Structures in Kolmogorov Flow with Stratification and Drag

AU - Sammartino, Marco

AU - Sciacca, Vincenzo

AU - Ponetti, null

AU - Sciacca, null

AU - Sammartino, null

PY - 2014

Y1 - 2014

N2 - We study a weakly stratified Kolmogorov flow under the effect of a small linear drag. We perform a linear stability analysis of the basic state. We construct the finite dimensional dynamical system deriving from the truncated Fourier mode approximation. Using the Reynolds number as bifurcation parameter we build the corresponding diagram up to Re=100. We observe the coexistence of three coherent structures.

AB - We study a weakly stratified Kolmogorov flow under the effect of a small linear drag. We perform a linear stability analysis of the basic state. We construct the finite dimensional dynamical system deriving from the truncated Fourier mode approximation. Using the Reynolds number as bifurcation parameter we build the corresponding diagram up to Re=100. We observe the coexistence of three coherent structures.

UR - http://hdl.handle.net/10447/96788

M3 - Article

SN - 0167-8019

VL - 132

SP - 483

EP - 492

JO - Acta Applicandae Mathematicae

JF - Acta Applicandae Mathematicae

ER -

Formation of Coherent Structures in Kolmogorov Flow with Stratification and Drag

Abstract

All Science Journal Classification (ASJC) codes

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