Une approche de l’etude du melange transversal dans les courants

Translated title of the contribution: An approach to the study of transverse mixing in streams

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Abstract

Transverse mixing under steady conditions is studied by introducing the mass streamline as the streamline of the mass density vector field. The two equations derived for it allow calculations of the concentration field, or the dispersion coefficient under different assumptions if the concentrations are given. The correctness of numerical methods developed was tested. Tracer studies have been performed on five different streams (Q = 0.25 − 2000 m3s-1) and data published have also been used. The methods based on the concept of mass streamline were applied, and the results were compared to observed concentrations. The limitations of the two-dimensional treatment have been examined finally. Key words: Streams, channels, hydraulics, diffusion, dispersion, turbulence, water, water pollution, numerical methods.

Original languageFrench
Pages (from-to)203-220
Number of pages18
JournalJournal of Hydraulic Research
Volume20
Issue number2
DOIs
Publication statusPublished - Mar 1982

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ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology

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