CO-ORDINATES FOR THE LIMIT OF DEPOSITION IN PIPELINE FLOW

The limit of deposition is of great importance for the design of solids pipelines. A stationary deposit of solids must be avoided for reasons of relability, but the use of too large a margin against deposition will cause a drop in transport efficiency. Experimental evidence is mounting that existing empirical correlations, such as that of Durand, do not provide accurate predictions of the deposition limit. The bed-slip model represents a new approach to the problem, based on an analysis of the forces acting on a deposit. The concept is simple--the bed will begin to slip when the driving force produced by the pressure gradient exceeds the mechanical friction between the bed particles and the pipe wall. Experimental verification for this approach was presented at Hydrotransport 2, and subsequent development of the bed-slip model has produced a set of parameters which provide physically-based co-ordinates for expressing conditions at the limit of deposition.

  • 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:
    • Wilson, K C
  • Publication Date: 1974-5

Media Info

  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00056463
  • Record Type: Publication
  • Source Agency: British Hydrodynamics Research Association
  • Report/Paper Numbers: Paper E1
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM