TURBULENT HEAT TRANSFER IN DRAG-REDUCING FLUIDS

An analytical method based on the analogy between energy and momentum transport in turbulent flow was developed for predicting the heat transfer in turbulent pipe flow of non-Newtonian drag-reducing fluids from the frictional characteristics of the fluid. The use of Meyer's correlation for predicting the friction factor and sublayer thickness of drag-reducing fluids permits the heat-transfer rates for such fluids to be determined from simple measurements of the pressure drop and flow rate. Nusselt numbers predicted by this method deviated by plus 8.5% avg from published experimental heat-transfer data for water for 10,100, and 1000 ppm aqueous solutions of Dow Chemical Co.'s Separan AP-30 drag-reducing additive. The heat-transfer analysis predicts that a reduction in the friction factor will be accompanied by a reduction in Nusselt number for a given Reynolds number and for Prandtl numbers greater than 1.

• Corporate Authors:

  American Institute of Chemical Engineers

  345 East 47th Street
  New York, NY  United States  10017
• Authors:
  • Wells Jr, C S
• Publication Date: 1968-5

Media Info

• Features: References;
• Pagination: p. 406-410
• Serial:
  • American Institute of Chemical Engineers, Journ of
  • Volume: 14
  • Issue Number: 3
  • Publisher: American Institute of Chemical Engineers

Subject/Index Terms

• TRT Terms: Drag; Nonnewtonian flow; Pipe flow
• Old TRIS Terms: Drag reduction; Pipeline flow theory
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00056061
• Record Type: Publication
• Source Agency: American Petroleum Institute
• Files: TRIS
• Created Date: Jun 24 1974 12:00AM