On the stability of the torsional flow of a class of Oldroyd-type fluids

N. Phan-Thien, R. R. Huilgol

    Research output: Contribution to journalArticlepeer-review

    14 Citations (Scopus)

    Abstract

    It is shown that the exact solution of the torsional flow of a class of Oldroyd-type fluids is kinematically similar to that for a Newtonian fluid. Furthermore, it is shown by a linearized stability analysis and by numerical integration, that the basic flow is unstable at high Weissenberg numbers. An Oldroyd fluid which has a negative second-normal stress coefficient is found to be more stable than one with zero (or positive) second-normal stress coefficient in this flow.

    Original languageEnglish
    Pages (from-to)551-555
    Number of pages5
    JournalRheologica Acta
    Volume24
    Issue number6
    DOIs
    Publication statusPublished - Nov 1985

    Keywords

    • Oldroyd-B fluid
    • stability
    • Torsional flow

    Fingerprint

    Dive into the research topics of 'On the stability of the torsional flow of a class of Oldroyd-type fluids'. Together they form a unique fingerprint.

    Cite this