Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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
CFD Analysis of Turbulent Fibre Suspension Flow
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.
VOLVO AB, Gropegårdsgatan 2, 417 15 Göteborg, Sweden.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Operation, Maintenance and Acoustics.ORCID iD: 0000-0002-4657-6844
ÅF Industry AB, Grafiska vägen 2, 401 51 Göteborg, Sweden.
Show others and affiliations
2020 (English)In: Fluids, E-ISSN 2311-5521, Vol. 5, no 4, article id 175Article in journal (Refereed) Published
Abstract [en]

A new model for turbulent fibre suspension flow is proposed by introducing a model for the fibre orientation distribution function (ODF). The coupling between suspended fibres and the fluid momentum is then introduced through the second and fourth order fibre orientation tensors, respectively. From the modelled ODF, a method to construct explicit expressions for the components of the orientation tensors as functions of the flow field is derived. The implementation of the method provides a fibre model that includes the anisotropic detail of the stresses introduced due to presence of the fibres, while being significantly cheaper than solving the transport of the ODF and computing the orientation tensors from numerical integration in each iteration. The model was validated and trimmed using experimental data from flow over a backwards facing step. The model was then further validated with experimental data from a turbulent fibre suspension channel flow. Simulations were also carried out using a Bingham viscoplastic fluid model for comparison. The ODF model and the Bingham model performed reasonably well for the turbulent flow areas, and the latter model showed to be slightly better given the parameter settings tested in the present study. The ODF model may have good potential, but more rigorous study is needed to fully evaluate the model.

Place, publisher, year, edition, pages
Basel, Switzerland: MDPI, 2020. Vol. 5, no 4, article id 175
Keywords [en]
cellulose fibre, CFD, non-Newtonian fluids, Bingham model, orientation distribution function (ODF)
National Category
Fluid Mechanics and Acoustics
Research subject
Engineering Acoustics
Identifiers
URN: urn:nbn:se:ltu:diva-81079DOI: 10.3390/fluids5040175ISI: 000601555400001Scopus ID: 2-s2.0-85092649276OAI: oai:DiVA.org:ltu-81079DiVA, id: diva2:1474635
Note

Validerad;2020;Nivå 2;2020-11-10 (alebob)

Available from: 2020-10-09 Created: 2020-10-09 Last updated: 2023-09-05Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Shankar, VijayPamidi, TarakaJohansson, Örjan

Search in DiVA

By author/editor
Shankar, VijayPamidi, TarakaJohansson, Örjan
By organisation
Operation, Maintenance and Acoustics
In the same journal
Fluids
Fluid Mechanics and Acoustics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 165 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
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