EXPERIMENTS ON THE FLOW OF NEWTONIAN AND NON-NEWTONIAN LIQUIDS THROUGH CORRUGATED PIPES

Experiments on the flow of Newtonian and non-Newtonian liquids through corrugated pipes confirmed the theoretically derived prediction that the corrugated wall of the pipe causes a reduction in Newtonian flow rate compared with the value expected on the basis of a straight pipe of the same mean radius. In the case of elastico-viscous liquids, the theoretical analysis for a certain fluid model indicates that the reduction in flow rate may be either amplified or reduced by the non-Newtonian properties of the liquid, depending on the precise flow conditions. In the experiments, the Newtonian fluids used were water and glycerol-water mixtures and the non-Newtonian fluids were aqueous solutions of polyacrylamide. Implications of the results of this study for the effects of wax deposition in crude oil pipelines, for the effects of pipe coated internally with bitumen, and for "drag reduction" by the addition of small amounts of high-molecular-weight polymer to Newtonian solvents in turbulent pipe flow are discussed briefly.

• Corporate Authors:

  Steinkopff (Dietrich) Verlag

  Saalbaustrasse 12, Box 1008
  D-Darmstadt,   Germany 
• Authors:
  • Dodson, A G
  • Townsend, P
  • Walters, K
• Publication Date: 1971-12

Media Info

• Features: References;
• Pagination: p. 508-516
• Serial:
  • Rheologica Acta
  • Volume: 10
  • Issue Number: 4
  • Publisher: Steinkopff (Dietrich) Verlag

Subject/Index Terms

• TRT Terms: Drag; Flow; Pipe flow; Turbulence
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Drag reduction; Pipeline flow theory
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00056216
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM