Furrow Module
The Furrow module is a hybrid Finite Volume – Finite Element (FV-FE) model that describes the coupled surface-subsurface flow and transport processes occurring during furrow irrigation and fertigation (Brunetti et al., 2018). The numerical approach combines a one-dimensional description of water flow and solute transport in an open channel with a two-dimensional description of water flow and solute transport in a subsurface soil domain, thus reducing the dimensionality of the problem and the computational cost. The modeling framework includes the standard two-dimensional HYDRUS computational module h2d_calc. exe, which can simulate the movement of water and solutes, as well as root water and nutrient uptake in variably-saturated soils, and a newly developed a one-dimensional model that describes water flow and solute transport in an open channel. The robustness of the proposed model was examined and confirmed by mesh and time step sensitivity analyses (Brunetti et al., 2018). The model was theoretically validated by comparison with simulations conducted with the well-established model WinSRFR and experimentally validated by comparison with field-measured data from a furrow fertigation experiment conducted in the US (Brunetti et al., 2018).
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- Download the manual of the Furrow Module for HYDRUS:
Brunetti, G., J. Šimůnek, and M. Šejna, The Furrow Module for HYDRUS (2D/3D) Simulating Water Flow and Solute Transport in a Pseudo-Three-Dimensional Furrow Irrigation System, Version 1.0, PC Progress, Prague, Czech Republic, 43 pp., 2019.
Project
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Description
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3DClosedFurrow
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The Furrow module example: with a Blocked end.
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3DOpenFurrow
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The Furrow module example: with an Open end.
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