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https://hdl.handle.net/11681/4557| Title: | Entrainment descriptions for mathematical modeling of pumped-storage inflows in reservoirs |
| Authors: | Georgia Institute of Technology. School of Civil and Environmental Engineering. Hydraulics Laboratory (U.S.) Environmental and Water Quality Operational Studies (U.S.) Roberts, Philip J. W. (Philip Joseph William), 1946- Dortch, Mark S. |
| Keywords: | Entrainment Inflow jets Mathematical models Numerical models Pumped-storage reservoirs Water quality Fluid dynamics Air entrainment |
| Publisher: | Environmental Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Description: | Technical Report Abstract: During hydropower generation and pumpback operations of pumped-storage projects, inflows are introduced into the reservoir system. These jetlike inflows often cause considerable entrainment of ambient water. The entrainment process can have a strong influence on the vertical distribution of reservoir water quality when pumped-storage inflow jets are discharged into a stratified reservoir. The objective of this study was to develop algorithms to describe the pumped-storage inflow entrainment process for use in reservoir water quality models. Pumped-storage inflow jets fall into two classes: strongly or weakly buoyant. The former class has been fairly extensively studied, and well-established mathematical models exist to predict their behavior. For this case, incorporation into a reservoir thermal model simply required adaptation of existing code. For the latter case , however, that of weakly buoyant jets, it was found that little information existed of either a theoretical or experimental nature. For that reason, an extensive series of experiments of a fundamental nature were performed on weakly buoyant jets into arbitrary stratification. The results were then reduced to a form suitable for inclusion into reservoir water quality simulation models. The developed algorithms were incorporated into an existing reservoir thermal simulation code, and a test application was made for Carters Lake, a Corps of Engineers pumped-storage project in Georgia. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/4557 |
| Appears in Collections: | Technical Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| TR-E-85-12.pdf | 16.17 MB | Adobe PDF |  View/Open |