Mathematical Models to Assess Stream Dynamicsby Laura Bittner, Univ of Illinois at Urbana Champaign, Urbana, United States,
Yarko Niño, Univ of Illinois at Urbana Champaign, Urbana, United States,
Marcelo García, (A.M.ASCE), Univ of Illinois at Urbana Champaign, Urbana, United States,
Abstract: A methodology is proposed to predict the behavior of meandering streams. Using a stream-shift model, lateral channel shift over a period of time is computed for several reaches with the help of aerial photographs. From this information, bank erosion coefficients are estimated and used to calibrate a bank erosion model for Illinois streams. The bank erosion formulation is coupled with a linear river-meandering model to analyze the behavior of streams over time. The results indicate that, in spite of their limitations, mathematical models can provide useful tools for the analysis of channel dynamics and more soundly educated stream engineering.
Subject Headings: Mathematical models | River bank stabilization | Meandering rivers and streams | Stream channels | Erosion | Hydrologic models | Mathematics | Rivers and streams | Dynamic models | Hydraulic models | Decision support systems | North America | Illinois | United States
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