Four siphons of square section with sides 24 mm (0.95 in.), 38 mm (1.5 in.), 50 mm (1.2 in.), and 62 mm (2.7 in.) were tested in a model stilling ponds. The dimensionless critical submergence over the siphon decreased with increase in siphon size and for a given siphon, the improvement in critical submergence varied with the baffle position along the horizontal and vertical axis of the stilling pond. The critical submergence increases in the distance of the baffle from the siphon; results with all siphons suggest that the best location for the vortex suppression is with the baffle situated at one diameter from the siphon. The optimum submersion of the baffle to prevent vortex formation was greatest for the 24 mm siphon and decreased with increase in the siphon size. A theoretical equation suggests the functional relationship between the vorticity responsible for air entrainment and variables.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Reddy, Y R
    • Pickford, J
  • Publication Date: 1974-11

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: p. 1685-98
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00264908
  • Record Type: Publication
  • Report/Paper Numbers: Proc. Paper 10969
  • Files: TRIS
  • Created Date: Feb 11 1975 12:00AM