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Unit-Response Method of Open-Channel Flow Routing
Unit-response flow routing is a technique of open-channel flow routing based on the unit hydrograph principle of lagging and superposition. The unit response is defined as the flow hydrograph at a downstream location resulting from a constant inflow of 1 cfs during a selected duration period, D, at an upstream location. It can be derived from actual records, but for general application it is derived synthetically by routing a translation hydrograph through reservoir storage to obtain an instantaneous unit response, and transforming this response to the selected D-hour unit response. Lag, or translation time, is used to account for flood-wave travel time in the channel. This can be varied with depth. Routing intervals of from 1 to 24 hr and routing reaches from 10 to 150 miles have been used successfully.
Unit-Response Method of Open-Channel Flow Routing
Unit-response flow routing is a technique of open-channel flow routing based on the unit hydrograph principle of lagging and superposition. The unit response is defined as the flow hydrograph at a downstream location resulting from a constant inflow of 1 cfs during a selected duration period, D, at an upstream location. It can be derived from actual records, but for general application it is derived synthetically by routing a translation hydrograph through reservoir storage to obtain an instantaneous unit response, and transforming this response to the selected D-hour unit response. Lag, or translation time, is used to account for flood-wave travel time in the channel. This can be varied with depth. Routing intervals of from 1 to 24 hr and routing reaches from 10 to 150 miles have been used successfully.
Unit-Response Method of Open-Channel Flow Routing
Sauer, Vernon B. (author)
Journal of the Hydraulics Division ; 99 ; 179-193
2021-01-01
151973-01-01 pages
Article (Journal)
Electronic Resource
Unknown
LINEAR APPROXIMATION OF OPEN-CHANNEL FLOW ROUTING WITH BACKWATER EFFECT
| British Library Conference Proceedings | 2007