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  USA  10017
  • Authors:
    • Wells Jr, C S
  • Publication Date: 1968-5

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Filing Info

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