Sewer Network Routing by Dynamic Wave Characteristics

by A. Suha Sevuk, Assoc. Prof.; Dept. of Civ. Engrg., Middle East Technical Univ., Ankara, Turkey,
Ben Chie Yen, (F.ASCE), Prof. of Civ. Engrg.; Univ. of Illinois at Urbana-Champaign, Ill.,

Serial Information: Journal of the Hydraulics Division, 1982, Vol. 108, Issue 3, Pg. 379-398

Document Type: Journal Paper


Hydraulics of unsteady flow in storm sewer networks is investigated by using a dynamic wave simulation model. The Illinois Storm Sewer (ISS) Model solves the complete dynamic equations using the method of characteristics. Two examples are presented. One is a 48-pipe sewer system to show that for unsteady open channel flow in sewer networks, the backwater effect of the junctions cannot be ignored, under certain circumstances reversal flow may occur, the depth-discharge relationship is not unique and a loop-type rating curve exists, and the occurrence of maximum discharge in a sewer need not coincide with that of maximum depth. The second example shows how a dynamic wave routing model can be used to evaluate and improve a sewer system.

Subject Headings: Dynamic models | Hydraulic models | Sewers | Flood routing | Simulation models | Unsteady flow | Storm sewers | Open channel flow | Illinois | United States

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