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Three-Dimensional Numerical Model for Fish Bypass Studies

by E. A. Meselhe, (M.ASCE),
A. J. Odgaard, (F.ASCE),
V. C. Patal, (M.ASCE),



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

This paper describes a numerical model developed for evaluating different options for fish bypass systems at Wanapum Dam on the Columbia River, WA. The model predicts the complex patterns of secondary flow that are basic to three dimensional mixing and transport. It is validated against detailed measurements in a physical laboratory model. The calculations are in good agreement with the measurements. Presented also are calculations that show the effect on forebay flow pattern of a novel bypass concept, the surface attraction facility, which diverts fish around the turbines without experiencing large pressure variations.

Subject Headings: Numerical models | Three-dimensional models | Fish and fishery management | Numerical analysis | Two-dimensional models | Three-dimensional flow | Rivers and streams

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