Rigid-Lid Flow Calculations with MacCormack's Method

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by Robert S. Bernard, US Army Engineer Waterways, Experiment Station, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: R.W. MacCormack's Method is employed for the calculation of subcritical flow in shallow water. The flow is assumed to be incompressible with rigid boundaries above and below, and the lateral boundaries may be either rigid or open. Manning's equation is used to approximate the resistance due to bottom friction. The STREMR computer code executes two-dimensional depth-averaged flow calculations and accommodates finite-volume grids of arbitrary shape. Results are presented for steady-state flow in a straight channel and a bendway, and for time-dependent flow past a circular cylinder. Comparisons with experimental results are given.

Subject Headings: Subcritical flow | Water flow | Fluid flow | Computer software | Shallow water | Domain boundary | Two-dimensional flow | Flow duration |

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