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HYDRUS Applications

Two-Dimensional Examples distributed with the model

Direct:

Column infiltration test
Water flow and solute Transport in a field soil profile under grass - seasonal simulation
Two-dimension unidirectional solute transport - comparison with analytical solution
One-dimensional solute transport with nitrification chain - comparison with analytical solution
One-dimensional solute transport with nonlinear cation adsorption - Data from Selim et al. (1987)
One-dimensional solute transport with non-equilibrium cation adsorption
Axisymetrical three-dimensional water and solute infiltration test
One-dimensional water flow with multiple hysteretic loops, data from Lenhard et al. (1991)
Water flow and solute transport from furrow to a drain
Three wetland examples

Inverse:

Parameter estimation from a cone penetrometer experiment (Gribb et al., 1998)
Parameter estimation from a tension disc infiltrometer experiment (Simunek et al., 1998a)
Parameter estimation from a tension disc infiltrometer experiment (Simunek et al., 1998b)

Three-Dimensional Examples distributed with the model

Direct:

Column infiltration test
Water flow and solute Transport in a field soil profile under grass - seasonal simulation
Three-dimension unidirectional solute transport - comparison with analytical solution
One-dimensional solute transport with nitrification chain - comparison with analytical solution
One-dimensional solute transport with nonlinear cation adsorption - Data from Selim et al. (1987)
One-dimensional solute transport with non-equilibrium cation adsorption
One-dimensional solute transport with first-order attachment
One-dimensional water flow with multiple hysteretic loops, data from Lenhard et al. (1991)
Three-dimensional contaminant transport from a waste disposal site
Three-dimensional flow and transport through a dike with a seepage face and root water uptake

Public Library of HYDRUS projects (for version 1)

Click on a Project Group name to get list of projects in the group and other details:

Group	Description	Availability
Drip	Examples involving subsurface drip irrigation (using 2D and axisymmetrical 2D domains).	Download now (11 MB)
Drip3D	Drip irrigation simulated using the three-dimensional transport domain.	Download now (11 MB)
Drip3Da	Three-dimensional drip irrigation examples from Raij et al., 2018.	Download now (2 MB)
Drain	Two examples demonstrating the use of the (simplified) drain boundary condition and the effects of the immobile water content on accelerated solute movement. Download brief description now	Download now (1.0 MB)
Dike	Examples demonstrating the use of Dynamic Time-Variable Boundary Conditions. Download brief description now	Download now (0.5 MB)
Leakage	Example demonstrating the use of HYDRUS to evaluate water movement in a complex multilayer system under a lined reservoir. Download brief description now	Download now (4.5 MB)
Roots Uptake	Examples demonstrating the use of the new root water and solute uptake term (which includes both compensated and uncompensated root water and solute uptake, and both passive and active root solute uptake (Šimůnek and Hopmans, 2009)	Download now (1.5 MB)
TCE	Example demonstrating the use of HYDRUS to simulate the transport of a volatile organic compounds across the capillary fringe. Example is based on McCarthy and Johnson (1993).	Download now (1.9 MB)
Stochastic	Examples of water flow and solute transport simulations in a randomly generated stochastic field of scaling factors representing soil heterogeneity.	Download now (1.3 MB)
Floods	Examples of water flow simulations in a flood plain. Examples demonstrate the use of dynamic time-dependent boundary conditions.	Download now (7.5 MB)
CapBar	Examples of water flow simulations in simple and complex (Mallants et al., 1999) capillary barriers.	Download now (3.4 MB)
Grignon	Numerical analysis of water and solute transport in a cultivated silt loam soil (heterogeneity generated by farming practices) (Coquet et al., 2005).	Download now (3.9 MB)

Public Library of HYDRUS projects (for version 2)

Click on a Project Group name to get list of projects in the group and other details:

Group	Description	Availability
Special BCs	Examples demonstrating new system-dependent boundary conditions in HYDRUS, such as a specified gradient BC, a subsurface drip with the characteristic function, and a surface drip with dynamic evaluation of a wetting area.	Download HYDRUS projects now (12.0 MB)
Irrigation	Examples demonstrating a new option to simulate irrigation triggered by a decrease of the pressure head at a selected observation node. Irrigation can be triggered at the time-variable pressure head or flux I boundaries, or at the atmospheric boundary.	Download HYDRUS projects now (1.2 MB)
Look-up tables	Two Examples demonstrating the use of the look-up tables (tabulated data) for soil hydraulic properties. The examples are based on Test 1 (Column test, One dimensional infiltration test) and Test2 (Grass field problem - Hupselse Beek 1982) from the 2D-Test Project Group.	Download HYDRUS projects now (0.2 MB)
Drain	Two Examples demonstrating the use of the seepage face BC to represent subsurface drains. Soil hydraulic properties are described using either van Genuchten or Brooks&Corey functions.	Download HYDRUS projects now (1.2 MB)
Stony Soils	Examples from Hlavacikova at al. (2016), demonstrating the use of HYDRUS to estimate the hydraulic conductivity of stony soils for different shapes of rock fragments..	Download 2D HYDRUS projects now (15.5 MB)

Public Library of HYDRUS projects (for version 3)

Click on a Project Group name to get list of projects in the group and other details:

Group	Description	Availability
Reservoir BCs	Examples demonstrating the new Reservoir Boundary Conditions (i.e., wells, furrows, wetlands) in HYDRUS (Šimůnek et al., 2018).	Download HYDRUS projects now (7.4 MB)
Root Growth	Examples demonstrating the new root distribution and root growth options (Šimůnek et al., 2018).	Download HYDRUS 2D (7.4 MB) and 3D (50 MB) projects now

Projects for Standard Add-on HYDRUS Modules

Group	Description	Availability
Unsatchem	Examples demonstrating the use of the UNSATCHEM module simulating transport of major ions and their mutual interactions. Two sets of examples are presented. The first set of examples (Test1-x) involves infiltration into a one-dimensional soil column. The second set of examples (Test4-x) involves furrow infiltration. .	Download HYDRUS projects now (9.7 MB)
C-Ride	Examples demonstrating the use of the C-Ride module simulating transport of particles and particle facilitated solute transport.	Download HYDRUS projects now (9.7 MB)
DualPerm	Examples demonstrating the use of the standard add-on module DualPerm, simulating flow and transport in dual-permeability media.	Download now
HP2	Examples demonstrating the use of the standard add-on module HP2 (coupled Hydrus (2D/3D) and PHREEQC [Parkhurst and Appelo, 1999]).	Download now

Projects for Non-Standard External HYDRUS Modules (formally not part of the standard HYDRUS software)

Group	Description	Availability
Overland	Non-Standard External Overland flow module and examples demonstrating its use. Kinematic Wave equation is solved for the overland flow.	Download now
Carbon	Non-Standard External UnsatChem module extended to simulate the production and transport of carbon dioxide in soils.	Download now
Roots Growth	Example demonstrating the Root Growth module, developed by Anne Hartmann, as a supplemental module of the HYDRUS software package (both Hydrus-1D and HYDRUS (2D/3D) to model the root growth as a function of different environmental stresses. (pdf)	Download now (7.4 MB)

We will be expanding the public library of HYDRUS projects in the near future. We welcome suggestions regarding the types of projects you would like to download here.

Instructions to install additional projects after downloading:

You can either unzip downloaded HYDRUS projects directly into any existing HYDRUS Project Group (e.g., Direct or Inverse) or create a new Project Group. If you unzip downloaded HYDRUS projects into any existing Project Group, then the downloaded projects will be immediately visible using the Project Manager. If you want to create a new Project Group for downloaded projects, follow the instructions below to make them visible in the Project Manager:

Unzip downloaded HYDRUS projects into a single folder.
Start HYDRUS and open the Project Manager.
From the Project Groups Tab click New.
Define the Name (e.g., Meteo, VZJ, Fracture) and Description (e.g., Drip irrigation into a loamy soil), and browse to the folder with downloaded HYDRUS projects.
After clicking OK, the new Project Group should be fully defined and accessible using the Project Manager.

HYDRUS - Other Existing Applications

Agricultural:

Irrigation management
Drip irrigation design
Sprinkler irrigation design
Tile drainage design - flow to a drainage system
Crop grow models, i.e., cotton model
Salinization and reclamation processes, salt leaching
Movement of pesticides; nonpoint source pollution
Seasonal simulation of water flow and plant response

Non-Agricultural:

Deep percolation beneath final closure cap designs for radioactive waste management sites at the Nevada test site
Flow around nuclear subsidence craters at the Nevada test site
Capillary barrier at the Texas low-level radioactive waste disposal site
Evaluation of approximate analytical analysis of capillary barriers
Landfill covers with and without vegetation
Risk analysis of contaminant plume from landfills
Seepage of wastewater from land treatment systems
Tunnel design - flow around buried objects
Highway design - road construction - seepage
Stochastic theory - solute transport in heterogeneous media
Lake basin recharge analysis
Interaction between groundwater aquifers and streams
Environmental impact of the drawdown of shallow water tables
Analysis of cone permeameter and tension infiltrometer experiments

References

Coquet, Y., J. Šimůnek, C. Coutadeur, M. Th. van Genuchten, V. Pot, and J. Roger-Estrade, Water and solute transport in a cultivated silt loam soil: 2. Numerical analyses, Vadose Zone Journal, 4, 587-601, 2005.

Gribb, M. M., J. Šimůnek, and M. F. Leonard, Development of a cone penetrometer method to determine soil hydraulic properties, ASCE J. of Geotech. and Geoenviron. Eng., 124(9), 820-829, 1998.

Lenhard, R. J., J. C. Parker, and J. J. Kaluarachchi, Comparing simulated and experimental hysteretic two-phase transient fluid flow phenomena, Water Resour. Res., 27(8), 2113-2124, 1991.

Mallants, D., G. Volckaert, and J. Marivoet, Sensitivity of protective barrier performance to changes in rainfall rate, Waste Management, 19, 467-475, 1999.

McCarthy, K. A., and R. L. Johnson, Transport of Volatile Organic Compounds Across the Capillary Fringe, Wat. Resour. Res., 29(6), 1675-1683, 1993.

Selim, H. M., R. Schulin, and H. Flühler, Transport and ion exchange of calcium and magnesium in an aggregated soil, Soil Sci. Soc. Am. J., 51(4), 876-884, 1987.

Šimůnek, J., R. Angulo-Jaramillo, M. Schaap, J.-P. Vandervaere, and M. Th. van Genuchten, Using an inverse method to estimate the hydraulic properties of crusted soils from tension disc infiltrometer data, Geoderma, 86(1-2), 61-81, 1998.

Šimůnek, J., D. Wang, P. J. Shouse, and M. Th. van Genuchten, Analysis of a field tension disc infiltrometer experiment by parameter estimation, Intern. Agrophysics, 12, 167-180, 1998.

Šimůnek, J. and J. W. Hopmans, Modeling compensated root water and nutrient uptake, Ecological Modeling, doi:10.1016/j.ecolmodel.2008.11.004, 220(4), 505-521, 2009.

Šimůnek, J., M. Šejna, and M. Th. van Genuchten, New Features of the Version 3 of the HYDRUS (2D/3D) Computer Software Package, Journal of Hydrology and Hydromechanics, 66(2), 133-142, doi: 10.1515/johh-2017-0050, 2018.