Dynamic modeling of viscoelastic extrusion flows

X F Yuan, R C Ball, S F Edwards

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A Lagrangian-Eulerian simulation technique was used to model viscoelastic extrusion flows. The essential feature of the method is to track explicitly the motion of fluid elements in a Lagrangian fashion and to solve fluid fields on a comoving grid in an Eulerian manner at each phys. time step. The method is able to track the details of fluid, e.g., deformation and stream line, and to advance free surfaces in a phys. way. Results are given for the time-dependent flows from rest of both Oldroyd-B and PTT (Phan-Thien and Tanner) fluids, through a planar 2:1 abrupt contraction and in free jet flows. [on SciFinder(R)]
    Original languageEnglish
    Pages (from-to)423-35
    JournalJ. Non-Newtonian Fluid Mech. FIELD Full Journal Title:Journal of Non-Newtonian Fluid Mechanics
    Volume54
    Issue number1-3
    Publication statusPublished - 1994

    Keywords

    • Flow (dynamic modeling of viscoelastic extrusion flows)
    • flow extrusion viscoelastic dynamic modeling

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