DRAG REDUCTION IN THE TURBULENT FLOW OF FIBER SUSPENSIONS

The velocity profile and pressure drop relationships for turbulent flow of fiber suspensions through smooth tubes were evaluated experimentally over a range of flow rates, tube sizes, fiber concentrations, and fiber geometries (aspect ratios). The work shows how drag reduction in these systems, in marked contrast to that in viscoelastic polymeric fluids, involves processes in the turbulent core of the velocity field. The implication of these results with respect to rates of heat and mass transport are considered in a preliminary way. (Modified author abstract)

• Supplemental Notes:
  • Revision of report dated 13 Sept 73. Also available in AICHE Jnl., V20 N2, pp 301-306, March 74.
• Corporate Authors:

  University of Delaware, Newark

  Department of Chemical Engineering
  Newark, DE  United States 
• Authors:
  • Vaseleski, R C
  • Metzner, A B
• Publication Date: 1973-11-26

Media Info

• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Drag; Motion; Pressure; Velocity
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Drag reduction; Velocity profiles
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00072404
• Record Type: Publication
• Source Agency: National Technical Information Service
• Contract Numbers: N00014-70A-0113-0001
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM