Mathematical analysis of channelisation in non-newtonian laminar deposition flow

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Abstract

Channel formation is a common feature in the deposition of tailings. It is unknown how this initiates. It is investigated if channel formation in laminar flow can originate from hydrodynamics only. An analytical linearised approach is followed in order to establish a theoretical basis and a reference for further developments. It shows that thixotropy can govern pattern formation. Observations in tailings deposition flume testing are applied for reference. It is concluded that sidewall friction influences system behaviour in a similar way, and is here held responsible for meandering.

Original languageEnglish
Title of host publicationProceedings of the 19th International Conference on Transport and Sedimentation of Solid Particles
EditorsJerzy Sobota, Rainer Haldenwan
Place of PublicationWroclaw, Poland
PublisherWydawnictwo Uniwersytetu Przyrodniczego we Wroclawiu
Pages245-252
ISBN (Print)978-83-7717-323-7
Publication statusPublished - 2019
Event19th International Conference on Transport and Sedimentation of Solid Particles, 2019 - Cape Town, South Africa
Duration: 24 Sep 201927 Sep 2019

Conference

Conference19th International Conference on Transport and Sedimentation of Solid Particles, 2019
CountrySouth Africa
CityCape Town
Period24/09/1927/09/19

Keywords

  • Hydrodynamics
  • Pattern formation
  • Rheology
  • Tailings
  • Thixotropy

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