Dispersion modelling in convective wind flows

W. H. Melbourne, T. J. Taylor, C. F. Grainger

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The scaling relationships required to model the dispersion of a buoyant plume in a convective flow have been developed, in particular a modified Froude number has been used which maintains a correctly scaled path for the plume and kinematic similarity between the vertical convective and longitudinal free-stream velocities. Scale models of atmospheric convective boundary layers have been developed in the new Monash University Environmental Wind Tunnel and examples of the characteristics of the largest scale, 1 100, are presented, in particular observing the spectral distributions of the longitudinal and vertical velocity components with increasing convection.

Original languageEnglish
Pages (from-to)1879-1885
Number of pages7
JournalAtmospheric Environment
Issue number11
Publication statusPublished - 1 Jan 1994


  • boundary layers
  • Buoyancy
  • scaling
  • spectra
  • wind tunnels

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