Water and Sediment Movement in Irrigation Furrows

by Jobaid Kabir, Univ of Idaho, Dep of Civil, Engineering, Moscow, ID, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

Water movement in an irrigation furrow is simulated by numerically solving the governing equations of continuity and momentum for unsteady, spacially varied flow in a pervious bed open channel by using an implicit finite difference scheme. Hydraulic parameters of the flow obtained from the numerical solution are used to determine the sediment discharge from the irrigation furrow. A critical furrow length for initiation of sediment deposition obtained from the field data is used for computing sediment deposition in the furrow stream bed.

Subject Headings: Sediment | River and stream beds | Numerical models | Furrow irrigation | Water discharge | Sediment transport | Open channels

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