Mixing in Gravity Current Heads Flowing over Rough Surfaces

  • W. D. Peters
  • J. E. S. Venart
  • S. R. Cogswell
Conference paper


A two-dimensional full-field quantitative visualization technique is used to assess the mixing that occurs in gravity current heads flowing over rough surfaces. This technique combines small-scale saltwater modelling laser-induced fluorescence and digital image processing to provide information about the mixing behaviour and the associated concentration fields that exist in this density-differentiated fluid mixing system. The effects of surface roughness and initial fluid density difference on flow dynamics and head dilution are examined with potential contributions to the area of heavier-than-air gas (HTAG) dispersion.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • W. D. Peters
    • 1
  • J. E. S. Venart
    • 2
  • S. R. Cogswell
    • 3
  1. 1.Department of EngineeringUniversity of Prince Edward IslandCanada
  2. 2.Fire Science CentreUniversity of New Brunswick FrederictonNew BrunswickCanada
  3. 3.EMR Microwave Technology Corporation FrederictonNew BrunswickCanada

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