Unique Problems in Modeling Irrigation Canals

by Forrest M. Holly, Jr., Univ of Iowa, Iowa City, United States,
Gary P. Merkley, Univ of Iowa, Iowa City, United States,

Document Type: Proceeding Paper

Part of: Irrigation and Drainage


Irrigation-canal modeling is based on the same unsteady flow equations used for river modeling. However the canal and irrigation environment present several unique simulation problems which are generally not encountered in river modeling. These include zero-depth conditions, mixed-regime and reversing flow, gate submergence, flow in inverted siphons and culverts, multiple flow paths, and control system interfaces. This paper outlines some of these special problems and their solution approaches.

Subject Headings: Submerged flow | Flow control | Hydraulic models | Irrigation | Canals | Rivers and streams | Control systems | Irrigation water

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