UNIT-RESPONSE METHOD OF OPEN-CHANNEL FLOW ROUTING
UNIT-RESPONSE FLOW ROUTING IS A TECHNIQUE OF OPEN- CHANNEL FLOW ROUTING BASE ON THE UNIT HYDROGRAPH PRINCIPLE OF LAGGING AND SUPERPOSITION. THE UNIT RESPONSE IS DEFININED 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 HR TO 24 HR AND ROUTING REACHES FROM 10 MILES TO 150 MILES HAVE BEEN USED SUCCESSFULLY.
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Supplemental Notes:
- PROC. PAPER 9499
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Authors:
- Sauer, V B
- Publication Date: 1973-1
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 179-93
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Serial:
- Journal of the Hydraulics Division
- Volume: 99
- Issue Number: hy 1
- Publisher: American Society of Civil Engineers
Subject/Index Terms
- TRT Terms: Channel flow; Flood routing; Flow; Hydraulics; Hydrography; Mathematical models; Rivers; Streamflow; Streams; Water
- Uncontrolled Terms: Open channel flow
- Old TRIS Terms: Response
- Subject Areas: Highways; Hydraulics and Hydrology;
Filing Info
- Accession Number: 00204485
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 2 1973 12:00AM