SILL-CONTROLLED FLOW TRANSITIONS AND EXTENT OF EROSION

THE DISTANCE IS DETERMINED OVER WHICH SCOUR WILL DEVELOP DOWNSTREAM OF A SILL-CONTROLLED FLOW TRANSITION IN AN ERODIBLE OPEN CHANNEL, IN WHICH THE SEDIMENT MOTION IS IMPENDING. THIS DETERMINATION IS BASED ON THE CONCEPT OF DYNAMIC SIMILARITY THAT MAKES IT POSSIBLE TO RELATE THE EROSION LENGTH IN AN ERODIBLE CHANNEL TO THE TOTAL LENGTH OF FLOW TRANSITION IN A FIXED-BED CHANNEL. ACCORDINGLY, PREDICTION OF THE LIMITING EXTENT OF EROSION BECOMES POSSIBLE FOR A WIDE VARIETY OF SILL-CONTROLLED FLOW TRANSITIONS, INCLUDING THE CASES PRESENT IN THE HYDRAULIC JUMP STILLING BASINS, AND THE NATURAL HYDRAULIC JUMP. /ASCE/

• Supplemental Notes:
  • Vol 96, No HY4, PROC PAPER 7212, PP 927-939, 10 FIG, 1 TAB,
• Authors:
  • Rand, W
• Publication Date: 1970-4

Media Info

• Serial:
  • Journal of the Hydraulics Division
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Channel flow; Channels (Waterways); Erosion; Hydraulic jump; Hydraulics; Scour; Stilling basins
• Uncontrolled Terms: Open channel flow
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204282
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 27 1970 12:00AM