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:
  • Journal of Hydronautics
  • Volume: 8
  • Issue Number: 4
  • Publisher: American Institute of Aeronautics and Astronautics

Subject/Index Terms

• TRT Terms: Additives; Flow; Nonnewtonian flow; Polymers; Transitional flow; Turbulence
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Polymer additives
• Subject Areas: Design; Marine Transportation;

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