Routing Storm Water through a Drainage System

by Subin Pinkayan, Asst. Prof. of Hydr. Engrg.; Asian Inst. of Technol., Bangkok, Thailand,

Serial Information: Journal of the Hydraulics Division, 1972, Vol. 98, Issue 1, Pg. 123-135

Document Type: Journal Paper


The unsteady flow equations, describing the problem of routing storm water through storm drainage systems with lateral inflow, solved by the method of characteristics on digital computers. The storm drain consists of a single continuous line of circular channel with constant slope. The main inflow to the drain is at the upstream end. The lateral inflow comes through a circular conduit at the junction box being normal to the direction of the main drain. The outflow is a free fall at the downstream. A good agreement is found in comparing computed hydrographs and observed hydrographs in the experiment at various locations along the drain.

Subject Headings: Stormwater management | Inflow | Hydraulic structures | Drainage systems | Hydrographs | Unsteady flow | Water flow | Flood routing

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