Design and Calibration of a 200-Foot Model Irrigation Border with a Computer Controlled Infiltrating Bed

by A. W. Blair, Univ of Texas at Austin, Cent for, Research in Water Resources, Austin, TX, USA,
E. T. Smerdon, Univ of Texas at Austin, Cent for, Research in Water Resources, Austin, TX, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

A physical model of an irrigation border was constructed using a 200 ft long by 2. 5 ft wide tilting flume with a 3. 5 inch deep infiltrating gravel bed. The border was partitioned into 15 sections. Each section contains a small computer controlled submersible pump from which water was uniformly withdrawn from the border through the gravel bed. Discrete spatially and temporally nonlinear infiltration was simulated by programming the computer to simulate any empirical infiltration equation. Each partitioned section also contained an electronic water depth sensor. This paper outlines the instrumentation used, the calibration procedures, and the real time infiltration simulation software developed.

Subject Headings: Computer models | Infiltration | Bed materials | Flow simulation | Hydraulic models | Gravels | Computer software

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