REDUCED SKIN FRICTION IN OIL PIPE DUE TO WATER ADDITION

the possibility of reducing the skin iriction in pipes transmitting viscous liquid by adding a second less viscous liquid is developed theoretically by first devising a procedure for determining the geometry of the interface, taking into account interface tension, capillary forces, and gravity. Then the two-component Poiseuille flow problem is solved by obtaining an equivalent variational principle and applying the Rayleigh-Ritz method. The results show that when the viscosity ratio is about 1:10, it is possible to get close to 50% reduction in the applied pressure gradient and similar reduction in the power consumption.

• Supplemental Notes:
  • Presented at the Israeli Institute of Chemical Engineers-American Institute of Chemical Engineers-American Society of Mechanical Engineers Two-Phase System International Symposium, technion City, Haifa, Israel, Aug 29-Sept 2, 1971.
• Corporate Authors:

  Israeli Institute of Chemical Engineers

  ,    
• Authors:
  • Bentwich, M
• Publication Date: 1971

Media Info

• Pagination: 22 p.
• Serial:
  • Issue Number: 7-4

Subject/Index Terms

• TRT Terms: Additives; Drag; Pipe flow; Polymers
• Old TRIS Terms: Drag reduction; Pipeline flow theory; Polymer additives
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00056244
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Report/Paper Numbers: Preprint
• Files: TRIS
• Created Date: Jul 15 1974 12:00AM