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Modelling of viscoelastic coextrusion flows in multi-manifold flat dies

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F04%3A63502761" target="_blank" >RIV/70883521:28110/04:63502761 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Modelling of viscoelastic coextrusion flows in multi-manifold flat dies

  • Original language description

    A recently proposed modification of the viscoelastic Leonov model is employed as a stress calculator in FEM analysis with a full u-v-p-t numerical scheme of the coextrusion flow in multi-manifold flat dies with 30 and 90 degree entrance angles. It is shown that the predicted stresses, interface location and streamlines fields are in a good agreement with the measurements. It is also revealed that the extensional viscosity has to be used in the modeling of the coextrusion flow to confirm experimental data.

  • Czech name

    Modelování viskoelastického toku v plochých vytlačovacích hlavách

  • Czech description

    Bylo zjištěno, že viskoelastický Leonovovův model umožňuje predikovat napěťové pole při koextruzním toku pro různé úhly vstupu v koextruzní hlavě. Bylo odhaleno, že elongační viskozita polymerních tavenin je nezbytnou reologickou charakteristikou pro dosažení shody mezi FEM modelováním a experimentálními daty pro koextruzní tok.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CD - Macromolecular chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    PLASTICS RUBBER AND COMPOSITES

  • ISSN

    1465-8011

  • e-ISSN

  • Volume of the periodical

    33

  • Issue of the periodical within the volume

    7

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    5

  • Pages from-to

    305-309

  • UT code for WoS article

  • EID of the result in the Scopus database