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Modelling of the channelling phenomenon of the pulping digester using porous Media
Mälardalen University, School of Sustainable Development of Society and Technology. (PRO)
Mälardalen University, School of Sustainable Development of Society and Technology. (PRO)ORCID iD: 0000-0002-7233-6916
2009 (English)In: SIMS, Scandinavian Modelling and Simulation  Society 50, conference in Fredrice, Denmark, October 7-8 (2009) / [ed] Brian Elmegard, Fredrice: SIMS electronic , 2009Conference paper, Published paper (Refereed)
Abstract [en]

A dynamic model is developed for a continuous pulping digester to characterize the channeling phenomenon. The commercial CFD codes, FLUENT, are used to compute the hydraulic behavior of the digester under the normal and particular operational conditions. All the circulation flows, extractions, multiple inlets and outlets are included in this model. The digester is designed in the Gambit and an axisymmetric 2d model is applied. A porous scheme is implemented in the model in order to design the fluid flow and channelling phenomenon inside the digester. A heterogeneous porous media is specified in order to take the compression of the pulp into account. The simulation can serves as a prognosis model to predict the risk situations and probably to hinder high economical damage. The k- model contributes to compute the flow “regimes” or eventual eddies in some turbulent zones of the digester.

Place, publisher, year, edition, pages
Fredrice: SIMS electronic , 2009.
Keywords [en]
CFD, channeling, porous media, turbulent
National Category
Paper, Pulp and Fiber Technology Fluid Mechanics and Acoustics
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-7888OAI: oai:DiVA.org:mdh-7888DiVA, id: diva2:292679
Conference
SIMS, Scandinavian Modelling and Simulation Society, conference in Fredrice, Denmark, October 7-8 (2009)
Available from: 2010-02-11 Created: 2010-02-09 Last updated: 2013-10-29Bibliographically approved

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fulltext(462 kB)242 downloads
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File name FULLTEXT01.pdfFile size 462 kBChecksum SHA-512
0cba1bfddaa457d1dc109d5668541dbee8b83bb4ff99012aa57581518a351fdb4cf7fd1a7694d9c8e42fb9f4eacdc2144b52a2588c2c425f583e340e442a933a
Type fulltextMimetype application/pdf

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http://scansims.org/sims2009/SIMS50proceedings.pdf

Authority records BETA

Dahlquist, Erik

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf