A Numerical Model to Assess Dam Operations to Minimize Downstream Temperature

Editor’s Note: Portions of this paper, “A Numerical Model to Assess Dam Operations to Minimize Downstream Temperature”, were featured in the October 2016 issue of Hydro Review magazine. The full paper is available for download below.

When temperature levels in the Columbia River began threatening fish populations, IIHR- Hydroscience & Engineering and the U.S. Army Corps of Engineers performed a study at McNary Dam to better understand how facility operations could impact environmental conditions.

In this study, an unsteady three-dimensional, non-hydrostatic model was used to predict the flow field and temperature dynamics in the forebay and turbine intakes of the U.S. Army Corps of Engineers’ 1,127-MW McNary plant, in order to help curb temperatures in the Columbia River. 

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