Mathematical Models to Assess Stream Dynamics

by Laura Bittner, Univ of Illinois at Urbana Champaign, Urbana, United States,
Yarko Ni?o, Univ of Illinois at Urbana Champaign, Urbana, United States,
Marcelo Garc?a, (A.M.ASCE), Univ of Illinois at Urbana Champaign, Urbana, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

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: River bank stabilization | Stream channels | Meandering rivers and streams | Mathematical models | Erosion | Mathematics | Rivers and streams | Illinois | United States

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