Use of a 1-D unsteady-flow model to simulate the effects on river flows from project operational changes proposed during hydro relicensing

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:220140

Fearing, H A ^[1]; Leonard, P M ^[2]

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1. Southern Company Services, Inc., Atlanta, GA (United States)
2. EA Engineering, Science, and Technology, Inc., Atlanta, GA (United States)

For its application to relicense the Sinclair Hydroelectric Project, Georgia Power Company was required to perform fishery, geomorphology, and wetland studies on a 110-km (70-mi) section of the Oconee River downstream of Sinclair Dam. The types of studies required and the length and meandering nature of the river study section made it necessary to employ a computer model of the river that could predict temporal and spatial changes in flow and stage. A one-dimensional unsteady-flow model, UNET, was selected for use. Extensive work was required prior to constructing the Oconee River model. Hydrological studies of the Oconee River basin were performed with the goal of selecting representative time series of discharge from historical gage records to use as input to the modeling process. A separate model, HEC-5, simulated operation of the Sinclair Project to provide discharge flows used as input for the UNET river model. Channel and floodplain cross-section data for the river model were developed with an extensive surveying effort that combined standard surveying techniques and use of aerial photography to develop floodplain contour maps.

• OSTI ID: 220140
• Report Number(s): CONF-9507190--
• Country of Publication: United States
• Language: English

Related Subjects

13 HYDRO ENERGY
AQUATIC ECOSYSTEMS
ENVIRONMENTAL EFFECTS
FLOW MODELS
FLOW RATE
GEORGIA
H CODES
HYDROELECTRIC POWER PLANTS
LICENSING
MANAGEMENT
RIVERS
U CODES