SOLID PARTICLE SETTLEMENT IN OPEN-CHANNEL FLOW

A random walk is formulated to describe the settlement of solid particles in open-channel flows. Both uniform and mixed-size sediment particles are tested. Results from simulations indicate that the probability density function of the settling length can be a lognormal distribution. The mean settling length can be estimated by the ratio of the unit-width discharge to the fall velocity of particles. The coefficient of variation is determined to be a power function of the ratio between flow shear velocity and fall velocity of solid particles. The simulation results are generally in agreement with measured data. The procedure for the design of settling basins is presented.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Li, R M
  • Shen, H W
• Publication Date: 1975-7

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 917-931
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 101
  • Issue Number: HY7
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Channel flow; Drainage basins; Hydraulics; Particles; Sedimentation; Simulation; Structural settlement
• Uncontrolled Terms: Open channel flow; Settling basins
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00125426
• Record Type: Publication
• Report/Paper Numbers: ASCE #11460 Proceeding
• Files: TRIS
• Created Date: Nov 5 1975 12:00AM