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Computation of Flow Fields Induced by Hydroplant Releases into Lower Lock Approaches

by Hector R. Bravo, Univ of Iowa, Iowa City, United States,
Forrest M. Holly, Univ of Iowa, Iowa City, United States,
Subhash C. Jain, Univ of Iowa, Iowa City, United States,



Document Type: Proceeding Paper

Part of: Mechanics Computing in 1990's and Beyond

Abstract:

A turbulence-based computational procedure was developed and applied to the prediction of flow fields in navigation installations induced by hydropower releases. The procedure uses a depth-averaged version of the k-? model and a fractional step method for the solution of the transport equations. The advection terms are treated using a characteristics approach to minimize numerical diffusion. Model performance is evaluated by comparisons with measured flow fields; the predictive capability improves significantly when results are compared to those of a constant eddy viscosity model.

Subject Headings: Fluid flow | Flow measurement | Hydro power | Flow patterns | Field tests | Turbulent flow | Power plants

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