INFLUENCE OF ADDED FINE PARTICLES ON THE FLOW STRUCTURE AND THE PRESSURE LOSSES IN SAND-WATER-MIXTURE

It is known from dredging practice that under certain conditions an addition of fine material (like silt or clay) to the sand-water-mixture may cause a reduction of the pressure losses in the pipe line. In order to obtain more detailed information experiments were carried out in a horizontal pipe with an inside diameter of 100 mm. Three types of sand were used and an active sodium bentonite was added, equal to 6.7% of the sand volume. A decrease of the pressure drop was observed, especially for finer material, higher concentrations, and lower to medium velocities. Above a certain velocity an increase of the pressure loss by the addition of bentonite was noted.

  • Supplemental Notes:
    • Presented at HYDROTRANSPORT 3--Third International Conference on the Hydraulic Transport of Solids in Pipes, Colorado School of Mines, Golden, Colo., May 15-17, 1974. Sponsored by BHRA Fluid Engineering. Complete set of Conference papers available for $45.00.
  • Corporate Authors:

    Colorado School of Mines

    1500 Illinois Street
    Golden, CO  USA  80401
  • Authors:
    • Kazanskij, I
    • Bruhl, H
    • Hinsch, J
  • Publication Date: 1974-5

Media Info

  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00056461
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Report/Paper Numbers: Paper D2
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM