Explicit Hydraulic Modeling of Sedimentation Transients in Alluvial Channels

by Mohammad Karamouz, Polytechnic Inst of New York, Dep of, Civil & Environmental, Engineering, Brooklyn, NY, USA,

Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age


An explicit finite difference numerical scheme is used in this study to model sediment transients in alluvial channels. The governing equations are momentum equation and continuity equation of sediment water mixture. Sedimentation transients are frequently experienced in sand-bed channels due to change in bed level or addition of a large concentration of sediment to the channel. The proposed model studies the deviation from equilibrium conditions caused by natural or man made disturbances. The stability and convergence of the numerical scheme is also investigated.

Subject Headings: Hydraulic models | Alluvial channels | Numerical analysis | Hydraulic transients | Sediment | Transient response | Numerical methods | Continuity equations

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