HEAD LOSSES IN STORM DRAIN JUNCTION BOXES

RESULTS ARE GIVEN ON MODEL STUDIES OF A JUNCTION BOX DESIGNED PRIMARILY FOR URBAN HIGHWAY STORM DRAINS. ONLY FULL-FLOWING PIPES ARE INCLUDED. LOSS COEFFICIENTS ARE DERIVED FROM CONSIDERATION OF TOTAL HEAD LOSS ACROSS THE JUNCTION BOX FOR STRAIGHT-THROUGH FLOW, FOR FLOW FROM A 90 DEG. LATERAL, AND FOR COMBINING FLOW FROM BOTH DIRECTIONS, USING VARIOUS COMBINATIONS OF PIPE SIZES AND FLOW RATES. AN EXAMPLE ILLUSTRATES THE USE OF THE LOSS COEFFICIENT CHARTS. CERTAIN ADVANTAGES IN DIRECT USE OF PRESSURE LOSSES ARE RECOGNIZED. CLOSE CORRELATION IS FOUND BETWEEN PRESENT LOSS AND MOMENTUM CHANGE FOR STRAIGHT-THROUGH FLOW, BUT THE METHOD HAS NOT YET BEEN PERFECTED FOR LATERAL AND MIXED FLOW. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/35/35-015.pdf
• Supplemental Notes:
  • Vol 35, pp 177-195, 16 FIG, 8 PHOT, 1 REF. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Wood, H W
  • Bossy, H G
• Publication Date: 1956

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirty-Fifth Annual Meeting of the Highway Research Board, Washington, D.C., January 17-20, 1956
• Serial:
  • Highway Research Board Proceedings
  • Volume: 35
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Boxes; Flow; Head; Intersections; Losses; Pipe; Pressure; Storm sewers; Urban highways
• Uncontrolled Terms: Model tests
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00204369
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 15 1971 12:00AM