MICROCOMPUTER MODEL FOR IMPERVIOUS RUNOFF USING KINEMATIC WAVE THEORY

Based on the ASCE Hydraulics Division paper on kinematic modelling by Alley, Dawdy and Schaake, a simplified runoff model for impervious areas has been developed and coded in basic language for use on commonly available micro-computers with only 16 k byte capacity. The model has been tested on half a dozen types of computer, and has needed only minor modifications for output to narrow printer or video screens. This model is applicable to most urban stormwater situations where topography is moderately steep and backwater effects are negligible. Rainfall on plane overland flow segments is routed to spill laterally into channel segments of various shapes, each with up to three inputs. Retarding basins may be inserted at any point, equipped with v-notched or broad-crested weirs, and with vertical or sloping walls. Rainfalls are specifiable in 5 minute intervals, and may be varied to simulate storm movement. Model output includes flow rates, depths and mean velocities at specifiable locations. Considerable economy of presentation is achieved in this report by adopting a computer-oriented mathematical notation. (Author/TRRL)

  • Corporate Authors:

    University of Queensland

    Department of Civil Engineering
    Brisbane, Queensland  Australia  4072
  • Authors:
    • BRADY, D K
  • Publication Date: 1984-5

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 49 p.
  • Serial:
    • Issue Number: CE51

Subject/Index Terms

Filing Info

  • Accession Number: 00389927
  • Record Type: Publication
  • Source Agency: ARRB
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Nov 30 1984 12:00AM