In dredging applications, deep sea mining and land reclamation projects typically large amounts of sediments are transported through pipes in the form of hyper concentrated (40% sediment or more) sediment-water mixtures or slurry. These slurries can flow at three different regimes. 1: fully suspended (homogeneous and stratified) 2: partially suspended with a sliding bed 3: partially suspended with a fixed bed. At the moment it is hard to predict the transport regime, the volume flux of particles and the pressure drop (friction factor) of these slurries within these regimes. The goal is to establish a model 3D continuum model that is able to predict the aforementioned aspects of slurry flow in a wide range of slurry flow conditions. In this paper it is investigated how well an existing CFD-model is able to model velocity and concentration profiles of suspended sediment in a pipeline. The CFD-model that is used is TwoPhaseEulerFoam which is part of OpenFOAM. This Euler-Euler solver treats both the phases as a continuum with its own momentum and continuity equations. The phases are coupled with coupling terms such as the drag force.
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
Pages337-344
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

    Research areas

  • slurry transport, CFD, two-phase flow, pipeline

ID: 68401511