DIMENSIONLESS INLET HYDROGRAPH MODEL

A number of mathematical models used to estimate storm hydrographs in urban areas consider runoff as a deterministic process and link a series of submodels to simulate the behavior of the various components of the runoff cycle. Because of the number of interrelated formulations in these linked system models, a large core computer is generally required for their proper use. The paper presents a dimensionless inlet hydrograph that can be developed from a complete linked system model and used as a substitute in some planning and design situations. The central objective was to develop a method for estimating the hydrograph for a small urban watershed entering in inlet or catch basin that would be simple enough to allow hand computations while retaining good agreement with the computer generated hydrographs obtained with a complete linked system model.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Ragan, R M
  • Root, M J
  • Miller, J F
• Publication Date: 1975-9

Media Info

• Pagination: p. 1185-95
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 101
  • Issue Number: HY9
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Computers; Culvert inlets; Dimensionless parameters; Hydrographs; Mathematical models; Runoff; Urban areas
• Uncontrolled Terms: Inlets; Models
• Old TRIS Terms: Dimensionless numbers
• Subject Areas: Design; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00125517
• Record Type: Publication
• Report/Paper Numbers: ASCE #11580 Proceeding
• Files: TRIS
• Created Date: Dec 16 1975 12:00AM