INFLUENCE OF HELICAL FLOW ON THE HYDRAULIC TRANSPORT CAPACITY OF SOLIDS THROUGH PIPES

A helical flow in dredge pipes shows a series of advantages such as augumentation and uniformity of the concentration of granular solid particles in the flow area, as well as reduction of the liquid/solid mixture velocity and of pipe wear. Starting from a calculation model an analytical approach is made to the effect of secondary flow on the increase of the transport capacity of solids through pipes. Our experiments on two liquid/solid mixtures in spiral flow through pipes of 100 mm diameter provide data with regard to the specific hydraulic parameters. A new practical solution for developing helical flow in dredge pipes is reported.

  • Supplemental Notes:
    • Paper C-2 from BHRA Fluid Engineering Symposium, University of Kent, Canterbury, England.
  • Corporate Authors:

    British Hydromechanics Research Association

    Cranfield MK43 0AJ, Bedfordshire,   England 
  • Authors:
    • Zarea, S
    • Roco, M
  • Publication Date: 1975-9

Subject/Index Terms

Filing Info

  • Accession Number: 00128421
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Files: TRIS
  • Created Date: Jan 14 1976 12:00AM