HYDRAULICS OF ENERGY, DISSIPATION IN STEEP, ROUGH CHANNELS

BASED ON THE PRINCIPLE OF THE MINIMUM ENERGY CONTENT IN TUMBLING FLOW, DESIGN METHODS WERE DEVELOPED FOR THE USE OF TWO-DIMENSIONAL SQUARE BARS OR ROWS OF CUBES AS AN EFFECTIVE AND ECONOMICAL MEANS FOR ENERGY DISSIPATION IN STEEP CHANNELS. CRITERIA AND EQUATIONS WERE DERIVED FROM LABORATORY TESTS IN A 2-FOOT WIDE RECTANGULAR FLUME WITH SLOPES UP TO 30%, THEN VERIFIED BY LIMITED FIELD TESTS FOR SLOPES UP TO 67%. THE RESULTS CAN ALSO BE APPLIED TO THE TRAPEZOIDAL CHANNELS WITH 45 DEGREE SIDE WALLS. /BPR/

• Supplemental Notes:
  • Hpr, Bpr-40705, STATE NO 1/2/, II, 0268
• Corporate Authors:

  Virginia Polytechnic Institute and State University, Blacksburg

  Virginia Tech Transportation Institute
  3500 Transportation Research Plaza
  Blacksburg, VA  United States  24061

  Virginia Department of Highways

  Richmond, VA  United States  23219
• Authors:
  • Morris, H M
• Publication Date: 1967-10

Subject/Index Terms

• TRT Terms: Channels (Waterways); Dissipation; Field tests; Flow; Hydraulics; Laboratory tests; Shape; Streamflow; Streams
• Uncontrolled Terms: Configuration; Stream channels; Trapezoidal channels
• Old TRIS Terms: Tumbling
• Subject Areas: Energy; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00203972
• Record Type: Publication
• Source Agency: Bureau of Public Roads /US
• Files: TRIS, STATEDOT
• Created Date: Dec 15 1994 12:00AM