Flow velocities in an axi-symmetrical rotating cutter suction head

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

Although there have been many improvements in the design of cutter suction dredgers, a modern cutter still spills up to 40% of the cut rock in most unfavourable conditions. This spillage is the amount of rock that is cut loose by the cutter head, but is not sucked up by the dredge pump. This paper focusses on the flow phenomena of the water in the cutter. The flow partly causes this spillage. Previously, physical experiments have been performed to study the flow in a cutter head. In this paper the results of these measurements are used for the validation of an unsteady flow model. The cutter is modelled using Computational Fluid Dynamics with the OpenFOAM software. The modelled fluid velocities are averaged over one revolution and are compared with the time averaged velocities from experiments. This shows good agreement for different rotational speeds of the cutter head.

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
Pages241-248
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
http://c6.aqua.up.wroc.pl/ts18/

Conference

ConferenceT&S 2017: 18th International Conferences on Transport and Sedimentation of Solid Particles
Abbreviated titleT&S 2017
CountryCzech Republic
CityPrague
Period11/09/1715/09/17
Internet address

Keywords

  • Cutter Suction Dredger
  • Numerical Modelling
  • Spillage
  • OpenFOAM

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