Predictions of pressure drop for modified power law fluids in conduits of three different cross-sectional shapes

Simsoo Park, Dong Ryul Lee

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Numerical solutions are presented for fully developed laminar flow for a modified power law fluid (MPL) in conduits of arbitrary cross sections. The solutions are applicable to pseudoplastic fluids over a wide shear rate range from Newtonian behavior at low shear rates, through a transition region, to power law behavior at higher shear rates. The analysis identified a dimensionless shear rate parameter which, for a given set of operating conditions, specifies where in the shear rate range a particular system is operating, i.e. in the Newtonian, transition, or power law regions. The numerical results of the friction factor times Reynolds number for the Newtonian and power law region are compared with previously published results showing agreement within 0.05% in the Newtonian region, and 0.9% and 5.1% in the power law region.

    Original languageEnglish
    Pages (from-to)1057-1067
    Number of pages11
    JournalChemical Engineering Science
    Volume57
    Issue number6
    DOIs
    Publication statusPublished - 2002 Mar 14

    Keywords

    • Friction factor in internal flow
    • Modified power law
    • Non-Newtonian fluid flow
    • Non-circular duct flow
    • Pressure drop in internal flow
    • Pseudoplastic fluid flow

    ASJC Scopus subject areas

    • General Chemistry
    • General Chemical Engineering
    • Industrial and Manufacturing Engineering

    Fingerprint

    Dive into the research topics of 'Predictions of pressure drop for modified power law fluids in conduits of three different cross-sectional shapes'. Together they form a unique fingerprint.

    Cite this