Computation of Flow Fields Induced by Hydroplant Releases into Lower Lock Approachesby 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,
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-ɜ 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 | Computing in civil engineering | Hydro power | Flow measurement | Fluid velocity | Turbulence | Turbulent flow | Navigation (waterway)
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