LAMINAR-TURBULENT TRANSITION IN FLOW OF PSEUDOPLASTIC FLUIDS WITH YIELD STRESS

An anlysis of the laminar-turbulent transition behavior of power law non-Newtonian fluids with yield stresses reveals that considerable interaction occurs between the characterizing parameters m and Hedstrom number for low power law indexes, m. In particular, for m less than 0.4 small yield stresses tend to destabilize the flow wheras large ones stabilize it. The results of this analysis suggest that in order to obtain correct predictions and interpretations of transitional and turbulent flows of non-Newtonian fluids, a correct modeling of the viscous rheological behavior of the fluid is essential.

  • Corporate Authors:

    American Institute of Aeronautics and Astronautics

    1290 Avenue of the Americas
    New York, NY  United States  10019
  • Authors:
    • Hanks, R W
    • Ricks, B L
  • Publication Date: 1974-10

Media Info

  • Features: References;
  • Pagination: p. 163-166
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00071945
  • Record Type: Publication
  • Source Agency: American Institute of Aeronautics and Astronautics
  • Files: TRIS
  • Created Date: Nov 20 1974 12:00AM