PRINCPLES OF GRAPHICAL GRADUALLY VARIED FLOW MODEL

Any gradually varied flow computation requires the solution of the energy and continuity equations. To this end, many techniques are available. For prisimatic channels, the Direct Step Method gives a result without requiring iteration. However, for nonprismatic channels, it is necessary to resort to some variation of the Standard Step Method, thereby requiring some iterative procedure. A graphical solution, using a simple program to construct a set of curves, can eliminate iteration as well as retain flexibility with regard to flow variations along the reach. To accomplish this, a graphical solution of the energy equation is presented using hydraulic transform graphs for river cross sections along a reach.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Kouwen, N
  • Harrington, R A
  • Solomon, S I
• Publication Date: 1977-5

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 531-541
• Serial:
  • Journal of the Hydraulics Division
  • Volume: 103
  • Issue Number: HY5
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Channel flow; Computer programs; Graphics; Hydraulics; Mathematical models
• Uncontrolled Terms: Graphical analysis; Models; Open channel flow
• Old TRIS Terms: Energy methods /structural/
• Subject Areas: Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00164032
• Record Type: Publication
• Report/Paper Numbers: ASCE 12939
• Files: TRIS
• Created Date: Nov 9 1977 12:00AM