COMPARISON OF MATHEMATICAL VERSUS EXPERIMENTAL FLOOD WAVE ATTENUATION IN PART-FULL PIPES (FOR SUBCRITICAL SLOPES WITH FREE-FALL END

A COMPARISON IS MADE OF OBSERVED ATTENUATIONS OF FLOOD- WAVES IN PART-FULL PIPES (OF SUBCRITICAL SLOPES WITH FREE- FALL END) WITH THE COMPUTED REPONSE TO THE SAME FLOW CONDITIONS USING NUMERICAL SOLUTIONS TO THE UNSTEADY FLOW EQUATIONS. THE OBSERVED DATA PRESENTED WAS COLLECTED FROM BOTH A 3-FOOT DIAMETER PIPE AT THE ENGINEERING RESEARCH CENTER OF COLORADO STATE UNIVERSITY AND AN EXPERIMENTAL SYSTEM AT THE HYDRAULICS RESEARCH STATION OF WALLINGFORD, BERKSHIRE, ENGLAND. PLOTS ARE SHOWN COMPARING OBSERVED AND COMPUTED WAVE-FORMS AT DIFFERENT POINTS OF THE SYSTEM AND AT DIFFERENT INSTANTS IN TIME. IN ADDITION, PLOTS ARE SHOWN COMPARING PEAK-DEPTH VERSUS DISTANCE FROM PIPE INLET AND TIME. DIFFERENCES BETWEEN OBSERVED AND COMPUTED DATA WERE MEASURED AND THOSE DIFFERENCES ARE PRESENTED IN TABLES. THE COMPARISONS ARE USED TO DETERMINE THE ABILITY OF THE UNSTEADY FLOW EQUATIONS, AS ALTERED UNDER SEVERAL ASSUMPTIONS, TO PRODUCE THE OCCURRENCES OBSERVED UNDER NATURAL CONDITIONS. /AUTHOR/

  • Supplemental Notes:
    • AdministratIVE FUND, CPR 11-3584, 100-45-31-13-3663-021
  • Corporate Authors:

    Colorado State University, Fort Collins

    Fort Collins, CO  USA  80523

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  USA  20590
  • Authors:
    • Mitchell, J S
  • Publication Date: 1967-3

Subject/Index Terms

Filing Info

  • Accession Number: 00203974
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Jan 16 1994 12:00AM