Summary
A ponding test in a 1600 m long reach of a trapezoidal irrigation canal, cross sectional area of max. 244 m2, has been performed to determine the hydraulic properties of the lining as well as the water losses due to infiltration and evaporation.
The experimental results were then used to validate a numerical model based on the 2D-Richards equation. The model takes into account the governing equation nonlinearity through the use of a time variant computational grid. This “breathing” grid automatically reduces its mesh size in regions of high gradients in hydraulic head, while in regions of low gradients the grid expands.
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© 1984 Springer-Verlag Berlin Heidelberg
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Schmitz, G., Vauclin, M., Seus, G.J. (1984). A Time Variant Computational Mesh Technique to Simulate a Large Scale Ponding Test. In: Laible, J.P., Brebbia, C.A., Gray, W., Pinder, G. (eds) Finite Elements in Water Resources. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-11744-6_42
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DOI: https://doi.org/10.1007/978-3-662-11744-6_42
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