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Up-Scaling In Heterogeneous Drag Reduction Systems

  • Petra Sittart
  • Hans-Werner Bewersdorff

Abstract

Heterogeneous drag reduction is obtained when concentrated polymer solutions are injected in turbulent pipe flows and the injected polymer thread stays intact. The friction behaviour of heterogeneous polymer solutions was measured in pipes of different diameters and by using different injector geometries. On the basis of these data an attempt is made to develop an upscaling method for heterogeneous drag reduction.

Keywords

Drag Reduction Velocity Ratio Pipe Diameter Friction Behaviour Injection Velocity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Elsevier Science Publishers Ltd 1990

Authors and Affiliations

  • Petra Sittart
    • 1
  • Hans-Werner Bewersdorff
    • 1
  1. 1.Department of Chemical EngineeringUniversity of DortmundDortmund 50Germany

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