SETTLEMENT OF SOLID PARTICLES IN OPEN-CHANNEL FLOW

The boundary condition at the bed is assumed so that the particles coming to the bed are deposited there so that there is no particle entrainment from the bed into the flow. The boundary condition at the free surface is such that there is no net transport of particles across the free surface. The initial condition is assumed as an instantaneous plane source. The problem is formulated in the Eulerian sense and then Aris moment transformations are employed. The following quantities are analytically predicted: (1) The vertical distribution and the fraction of particles retained in suspension; (2) the probability density function of the duration of the retention period of particles in suspension and the mean retention period; and (3) following the hypothesis that the distribution of deposited particles follows an exponential function with increasing time, the mean and the variance of settling length of particles. /Author/

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Sumer, B M
• Publication Date: 1977-11

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 1323-37
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 103
  • Issue Number: HY11
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Air entrainment; Channel flow; Density; Ground settlement; Particles; Sediments
• Uncontrolled Terms: Entrainment; Open channel flow
• Old TRIS Terms: Density functions
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00168438
• Record Type: Publication
• Report/Paper Numbers: ASCE 13368 Proceeding
• Files: TRIS
• Created Date: Feb 16 1978 12:00AM