Sources and sinks in ID traveling waves

L. Pastur; M.T. Westra; W. Water, van de

doi:10.1016/S0167-2789(02)00683-8

Sources and sinks in ID traveling waves

L. Pastur, M.T. Westra, W. Water, van de

Fluids and Flows

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25 Citations (Scopus)

Abstract

We study the behavior of sources and sinks in an experiment where left and right traveling waves are excited on the free surface of a fluid that is heated by a wire stretched under the surface. To study phenomena very close to threshold the experiment is made very long (2 in), while a precise linear map of the free surface is provided by a scanning device. The observed dynamical behavior of the sources is in agreement with a recent prediction based on the coupled complex Ginzburg-Landau equation [Physica D 134 (1999) 1]. However, the behavior of the sinks disagrees with it. When sources turn unstable they eject holes which are believed to be of homoclinic type.

Original language	English
Pages (from-to)	71-83
Number of pages	13
Journal	Physica D: Nonlinear Phenomena
Volume	174
Issue number	1/4
DOIs	https://doi.org/10.1016/S0167-2789(02)00683-8
Publication status	Published - 2003

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title = "Sources and sinks in ID traveling waves",

abstract = "We study the behavior of sources and sinks in an experiment where left and right traveling waves are excited on the free surface of a fluid that is heated by a wire stretched under the surface. To study phenomena very close to threshold the experiment is made very long (2 in), while a precise linear map of the free surface is provided by a scanning device. The observed dynamical behavior of the sources is in agreement with a recent prediction based on the coupled complex Ginzburg-Landau equation [Physica D 134 (1999) 1]. However, the behavior of the sinks disagrees with it. When sources turn unstable they eject holes which are believed to be of homoclinic type.",

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AB - We study the behavior of sources and sinks in an experiment where left and right traveling waves are excited on the free surface of a fluid that is heated by a wire stretched under the surface. To study phenomena very close to threshold the experiment is made very long (2 in), while a precise linear map of the free surface is provided by a scanning device. The observed dynamical behavior of the sources is in agreement with a recent prediction based on the coupled complex Ginzburg-Landau equation [Physica D 134 (1999) 1]. However, the behavior of the sinks disagrees with it. When sources turn unstable they eject holes which are believed to be of homoclinic type.

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DO - 10.1016/S0167-2789(02)00683-8

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Sources and sinks in ID traveling waves

Abstract

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