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Experiments in Fluids

, Volume 42, Issue 1, pp 123–130 | Cite as

A novel internal waves generator

  • L. Gostiaux
  • H. Didelle
  • S. Mercier
  • T. Dauxois
Research Article

Abstract

We present a new kind of generator of internal waves which has been designed for three purposes. First, the oscillating boundary conditions force the fluid particles to travel in the preferred direction of the wave ray, hence reducing the mixing due to forcing. Second, only one ray tube is produced so that all of the energy is in the beam of interest. Third, temporal and spatial frequency studies emphasize the high quality for temporal and spatial monochromaticity of the emitted beam. The greatest strength of this technique is therefore the ability to produce a large monochromatic and unidirectional beam.

Keywords

Particle Image Velocimetry Internal Wave Internal Gravity Wave Stratify Fluid Monochromatic Plane Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We warmly thank J. Sommeria for helpful discussions and S. Viboud for help during the experiments. Figure 1f was obtained by D. Benielli and J. Sommeria. Comments to the manuscript by Denis Martinand are deeply appreciated. This work has been partially supported by 2005-ANR Project TOPOGI-3D and by the 2006-PATOM CNRS program.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • L. Gostiaux
    • 1
  • H. Didelle
    • 2
  • S. Mercier
    • 2
  • T. Dauxois
    • 1
  1. 1.Laboratoire de PhysiqueUMR-CNRS 5672Lyon Cédex 07France
  2. 2.Laboratoire des Écoulements Géophysiques et Industriels (LEGI)UMR 5519 CNRS-UJF-INPGGrenobleFrance

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