On the interactions between turbulent flow structure, sediment transport and bedform development: some considerations from recent experimental research

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Recent research into the structure of turbulent boundary layers has revealed organized vortical structures which control the dissipation of energy within turbulent flows, the generation and magnitude of the shear velocity and shear stress and consequently the entrainment of sediment. However, the significant feedbacks of grain and form roughness and the influence of mobile sediment on the flow may greatly modify the turbulent boundary layer structure and introduce many new complexities when considering the entrainment of sediment. This chapter briefly reviews recent work on the structure of turbulent boundary layers and discusses this research in the context of sediment entrainment, 'bursting' within geophysical flows and the nature and significance of drag reduction. (Author)

Original languageEnglish (US)
Title of host publicationTurbulence: Perspectives On Flow and Sediment Transfer
EditorsN J Clifford, J R French, J Hardisty
PublisherJohn Wiley & Sons, Ltd.
Pages61-92
Number of pages32
StatePublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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