Bri-Stars Model for Alluvial River Simulationby Albert Molinas, Hydrau-Tech Inc, Fort Collins, United States,
Abstract: The Bridge StreamTube Model for Alluvial River Simulation (BRI-STARS) is a semi-two-dimensional model capable of computing alluvial scour/deposition through subcritical, supercritical, and a combination of both flow conditions involving hydraulic jumps. The use of streamtubes allow the modeling of scour/deposition of applications involving bridges not only along a study reach but also across alluvial channels. In this paper, the basic formulations used in the BRI-STARS model are presented and various hydraulic, sediment transport, local scour, and stream power minimization computations are described. The BRI-STARS model runs on IBM PC-AT or compatibles.
Subject Headings: Hydraulic models | Hydrologic models | Simulation models | Structural models | Alluvial channels | Rivers and streams | Scour | Sediment transport
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