Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
Extracting extensional properties through excess pressure drop estimation in axisymmetric contraction and expansion flows for constant shear viscosity, extension strain-hardening fluids
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Structure Design.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Structure Design.
2016 (English)In: Rheologica Acta, Vol. 55, no 5, 373-396 p.Article in journal (Refereed) Published
Abstract [en]

In this study, hyperbolic contraction–expansion flow (HCF) devices have been investigated with the specific aim of devising new experimental measuring systems for extensional rheological properties. To this end, a hyperbolic contraction–expansion configuration has been designed to minimize the influence of shear in the flow. Experiments have been conducted using well-characterized model fluids, alongside simulations using a viscoelastic White–Metzner/FENE-CR model and finite element/finite volume analysis. Here, the application of appropriate rheological models to reproduce quantitative pressure drop predictions for constant shear viscosity fluids has been investigated, in order to extract the relevant extensional properties for the various test fluids in question. Accordingly, experimental evaluation of the hyperbolic contraction–expansion configuration has shown rising corrected pressure drops with increasing elastic behaviour (De=0∼16), evidence which has been corroborated through numerical prediction. Moreover, theoretical to predicted solution correspondence has been established between extensional viscosity and first normal stress difference. This leads to a practical means to measure extensional viscosity for elastic fluids, obtained through the derived pressure drop data in these HCF devices. © 2016, Springer-Verlag Berlin Heidelberg.

Place, publisher, year, edition, pages
Springer Verlag , 2016. Vol. 55, no 5, 373-396 p.
Keyword [en]
Axisymmetric contraction–expansion, Boger fluid, Extensional flow, Hyperbolic contraction, Pressure drop, Viscoelastic fluid
National Category
Food Science
Identifiers
URN: urn:nbn:se:ri:diva-133ISBN: 00354511 (ISSN) OAI: oai:DiVA.org:ri-133DiVA: diva2:932828
Available from: 2016-06-02 Created: 2016-06-02 Last updated: 2016-06-29Bibliographically approved

Open Access in DiVA

No full text

Other links

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959180854&partnerID=40&md5=6b9db184c7d56192a87d46f5f526b9e0
By organisation
Structure Design
Food Science

Search outside of DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 16 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
v. 2.29.1