The effect of slopes on sand transport - Numerical modelling

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31 Scopus citations

Abstract

Most aeolian sediment transport models and experiments have been conducted on flat horizontal surfaces. Very little numerical or analytical research has been carried out for aeolian sand transport on slopes. The current work presents numerical modelling of saltating sand for a climbing dune which has a slope angle of 20°. The model utilised wind fields predicted from the FAA complex terrain model for two dimensional escarpment and field data and wind-tunnel measurements for flow over a scaled model. Results suggest that only particles smaller than 0.230 mm are able to climb this slope under a wind shear velocity of 30 cm s-1. The field observations and measurements confirm the numerical results.

Original languageEnglish
Pages (from-to)171-181
Number of pages11
JournalLandscape and Urban Planning
Volume34
Issue number3-4
DOIs
StatePublished - 1 Jan 1996

Keywords

  • Climbing dune
  • Numerical modelling
  • Sand transport
  • Slopes

ASJC Scopus subject areas

  • Ecology
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

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