TRACER STUDIES OF SEDIMENT TRANSPORT PROCESSES

PARTICLES OF VARIOUS DIAMETERS AND SPECIFIC GRAVITIES WERE COATED WITH FLUORESCENT DYES AND USED AS TRACERS TO STUDY THE TRANSPORT AND DISPERSION OF SANDSIZE PARTICLES FOR THE FLAT-BED CONDITION IN THE RIO GRANDE CONVEYANCE CHANNEL AND FOR A DUNE-BED CONDITION IN THE ATRISCO FEEDER CANAL, N.M. PARTICLE VELOCITIES FOR THE DUNE BED DEPENDED ON SIZE BUT WERE ONLY WEAKLY DEPENDENT ON SPECIFIC GRAVITY. PARTICLE VELOCITIES FOR THE FLAT BED DEPENDED ON SIZE AND SPECIFIC GRAVITY, AND WERE SEVERAL ORDERS OF MAGNITUDE GREATER THAN THE PARTICLE VELOCITIES FOR THE DUNE BED. LATERAL MIXING OF THE TRACERS FROM A POINT SOURCE WAS CONSIDERABLE GREATER FOR THE DUNE BED THAN FOR THE FLAT BED. VERTICAL MIXING OF THE TRACERS FOR THE FALT BED WAS LIMITED TO THE THIN LAYER OF MATERIAL MOVING NEAR THE BED SURFACE, WITH ESSENTIALLY NO PENETRATION INTO THE BED. VERTICAL MIXING FOR THE DUNE BED OCCURRED TO A DEPTH APPROXIMATELY EQUAL TO THE HEIGHTS OF THE DUNES. /AUTHOR/

• Supplemental Notes:
  • Vol 97, No HY 9, PROC PAPER 8364, PP 1305-1316, 10 FIG,
• Authors:
  • Rathbun, R E
  • Nordin, C F
• Publication Date: 1971-9

Media Info

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

Subject/Index Terms

• TRT Terms: Alluvium; Channels (Waterways); Ditches; Dune sands; Hydraulics; Particles; Sedimentation; Specific gravity; Streams; Tracers (Chemistry); Velocity
• Uncontrolled Terms: Stream channels
• Old TRIS Terms: Bed formation; Tracers
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204386
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 25 1971 12:00AM