End Sills and the Forced Hydraulic Jump in Circular Culverts Operating at Low Discharge Factors

Details

• Creators:
  Brandes, Robert J ; Rao, Manam V P ; Maasch, Frank D
• Corporate Creators:
  University of Texas at Austin. Center for Highway Research
• Corporate Contributors:
  Texas. Highway Department ; United States. Department of Transportation. Federal Highway Administration. Bureau of Public Roads
• Subject/TRT Terms:
  • Culverts
  • Dissipation
  • Flow control (Air traffic control)
  • Geometry
  • Height
  • Hydraulic jump
  • Location
  • Rectangles
• Publication/ Report Number:
  0-92-4, THD Study 3-5-66-92
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  University of Texas at Austin. Center for Highway Research
• Abstract:
  An experimental investigation of the effectiveness of walls, or sills, across a culvert outlet between flared wingwalls established that moderately high velocity flow in a culvert on a steep grade could be forced to expand in a hydraulic jump to fill the barrel by the use of sills, particularly if the culvert were operating at low discharge rates, that is, up to 2.5 d to the power 2.5. The outflow on an apron of width 3.5 d occurred with specific energy about one-fourth of that of the culvert flow.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/77457/dot_77457_DS1.pdf
• File Type:
  [PDF - 6.86 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:651042fc8df751fa051e764e3f0f36d5ddb647824d5eee92ff59ba7651c134474142e5f914cd2e09581e476c196ceef0b1ffc9c69c3e39e8e99a2d0160c3562e