Numerical Simulation of Water Renewal Time of Wide-shallow Reservoir
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Abstract:
The transportation and diffusion of pollutants in water body are closely related to the water renewal time, so knowledge of the water renewal time of reservoir is useful for understanding the temporal and spatial distribution of pollutants. In this paper, a three-dimensional numerical model of hydrodynamics in the wide-shallow reservoir was developed based on EFDC, and then the model was validated using the field data. First, the validated model was used to simulate the flow velocity field at 365 days and water renewal time of wide-shallow reservoir in order to obtain the hydrodynamics characteristics. Then, the water renewal time of reservoir was simulated under the conditions of no wind in order to obtain the impacts of wind on the water renewal time of wide-shallow reservoir. The results can provide theoretical reference for the ecological regulation of wide-shallow reservoir.
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