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A 2-D Numerical Model for High Velocity Channels

by R. C. Berger, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
R. L. Stockstill, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

The hydraulic performance of a high velocity channel depends on maintaining a supercritical flow regime over specified portions of its length. Predicting the potential location of shocks such as oblique standing waves and hydraulic jumps and determining the superelevation of the water surface in channel bends is necessary to design the required wall heights. Work is being conducted to develop a numerical flow model that can estimate the location and strength of hydraulic jumps and standing waves in high velocity channels. The high velocity channel model, HIVEL2D, is a depth averaged, two-dimensional (2-D) flow model designed specifically for flow fields containing supercritical and subcritical regimes as well as the transitions between the regimes. This paper summarizes the numerical scheme and presents some of the initial test results of HIVEL2D, currently under development at the U.S. Army Engineer Waterways Experiment Station.

Subject Headings: Wave velocity | Two-dimensional models | Hydraulic models | Fluid velocity | Channels (waterway) | Numerical models | Hydraulic design

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