Channel width calculation for tailings beaching

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Self-formed channel profiles on tailings beaches are determined by rheology, settling solids and flow conditions. A model is described for the width of subaereal tailings channels with settling solids flowing at onset of turbulence. Early transition of open channel with viscous Non-Newtonians is taken into account building on the homogenous slurry open channel data set of Haldenwang. Free formed channels measured in on-site tilting flume tests by Pirouz et al. are analysed. It is confirmed that a number of these channels is at onset of transition and that their width/depth ratio is reasonably well predicted. Other channels in this data set are at low Re laminar flow at minimal width-depth ratio, settling solids apparently being discharged.

Original languageEnglish
Title of host publicationProceedings 18th International Conference on Transport and Sedimentation of Solid Particles (T&S 2017)
EditorsV. Matousek, J. Sobota, P. Vlasak
Place of PublicationWroclaw, Poland
PublisherWroclaw University of Environmental and Life Sciences
ISBN (Print)978-83-7717-269-8
Publication statusPublished - 2017
EventT&S 2017: 18th International Conferences on Transport and Sedimentation of Solid Particles - Prague, Czech Republic
Duration: 11 Sep 201715 Sep 2017
Conference number: 18


ConferenceT&S 2017: 18th International Conferences on Transport and Sedimentation of Solid Particles
Abbreviated titleT&S 2017
CountryCzech Republic
Internet address


  • Laminar flow
  • onset transition
  • revisit Haldenwang data set
  • open channel


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