HYDRUS Support
Numerical modeling of highly nonlinear systems, such as variably saturated water flow in porous media, is a very complex problem and users without sufficient experience and training do not always obtain correct results. To facilitate this process, we provide users of HYDRUS with the following information sources and services:
Support and Services
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Learning Sources
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Contact Technical Support Now
- Report an error. Before you report an error, please, visit our web page with the list of known problems and read the general instructions for reporting of errors. After that, prepare a detailed description of the error and send it to hydrus@pc-progress.cz. Please note that sometimes it can be very usefull if you take screen shots ("Print Screen") right before and after the error and attach these pictures to your e-mail.
- Do you have a question? We would like to encourage you to post your questions to our discussion forums. According to our exerience, many questions can be interesting for other users, and answers to such questions have become an important source of information. However, if you think that your question is not appropriate for posting to a discussion forum, please send us this question to hydrus@pc-progress.cz.
Discussion forums
Several discussion forums are hosted on our web site, where users, after registering, can submit questions about the different software packages (HYDRUS 2D/3D, Hydrus-1D, HP1, STANMOD, RETC, Hydrus-2D, and Meshgen2D), and how to use them for their particular applications. Users can also discuss various topics related to modeling, or respond to questions posted by other users. The large number of users for these discussion forums has made the forums nearly self-supporting in terms of software support and feedback.
Documentation and Books
We have dramatically extended the documentation for several software packages. For example, the installation of the latest HYDRUS (2D/3D) is accompanied with 258 pages of information in the technical manual, a 280 pages user manual, and over thousand pages of online context-sensitive help. Furthermore, each Windows-based software package comes with a suite of test problems, most of which are described in detail in the corresponding technical manuals. Previously published studies, which utilized the programs, also provide sources of information for new users.
The documentation (manuals and help) is part of the installation, i.e., it installs with the program. However, some manuals can be downloaded independently (see the "More Downloads" column in the table with latest versions of our programs).
HYDRUS Textbook from CRC Press: Soil Physics with HYDRUS: Modeling and Applications
Hands-on use of the windows-based codes has proven extremely effective when learning the principles of water and solute movement, even for users with very little direct knowledge of soil physics and related disciplines and with limited mathematical expertise. This textbook is suitable for teaching an undergraduate or lower level graduate course in soil physics or vadose zone hydrology. The text can also be used for self-study on how to use the HYDRUS models. Using the information in this book, users can run models for different scenarios and with different parameters, thus gaining a better understanding of the physics of water flow and contaminant transport. HYDRUS-1D is used to demonstrate processes of infiltration, evaporation, and percolation of water through soils of different textures and layered soils. It is also used to show heat flow and solute transport in these systems, including the effect of physical and chemical nonequilibrium conditions. The book includes examples of two-dimensional flow in fields, hillslopes, boreholes, and capillary fringes using HYDRUS (2D/3D). It demonstrates the use of two other software packages, RETC and STANMOD, that complement the HYDRUS series.
Public Library of Projects
We will be continuously developing and updating a library of HYDRUS 2D/3D and Hydrus-1D projects demonstrating the use of these software packages.
List of Applications
Of course, a major satisfaction for software developers like us is to see the programs be actively used in various applications, and to see results of the applications published in the literature. We therefore are continuously updating the list of such publications for Hydrus-1D and related software packages, and for Hydrus-2D (or 2D/3D) and its predecessors.