FRICTION FACTORS FOR CORRUGATED PLASTIC TUBING

HYDRAULIC TESTS ON CORRUGATED PLASTIC DRAIN TUBING WERE CONDUCTED AT THE SOUTHWESTERN IRRIGATION FIELD STATION OF THE AGRICULTURAL RESEARCH SERVICE, BRAWLEY, CALIF. MANNING'S N AND DARCY-WEISBACH F WERE DETERMINED FOR COMMERCIALLY AVAILABLE TUBING FROM 1.375 TO 4-IN. NOMINAL DIAMETER. AN AVERAGE DESIGN VALUE OF MANNING'S N OF 0.017 IS RECOMMENDED. FOR CORRUGATED PLASTIC TUBING LESS THAN 2 INCHES IN DIAMETER AN AVERAGE DESIGN VALUE OF MANNING'S N OF 0.018 IS RECOMMENDED. HUMPS AND DEPRESSIONAL VARIATIONS UP TO TWO DIAMETERS FROM A UNIFORM GRADE DO NOT INCREASE HEAD LOSSES IN FULL-FLOWING LINES. /ASCE/

  • Availability:
  • Supplemental Notes:
    • Vol 96, No IR3, PROC PAPER 7531, PP 265-271, 3 FIG, 3 TAB
  • Authors:
    • Hermsmeier, L F
    • Willardson, L S
  • Publication Date: 1970-9

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Filing Info

  • Accession Number: 00235815
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 26 1970 12:00AM