Oklahoma State University

Convective-Dispersive Transport with Steady-State Water Flow: Software

CDE: Solutions to the Chemical Transport Equation for Steady-State Water Flow



D.L. Nofziger and Jinquan Wu



To solve the convection dispersion equation for chemical transport in soils in an interactive environment that enables users to observe the fate of chemicals over time. It was designed to enable users to gain insight into the impact of different model parameters on the fate of chemicals in soils. It is intended as an educational tool.


Latest Version:

2002.08.08,  August 8, 2002



A manual outlining the purpose, model, and simplifications used in this program is available here.


Computer Platform:

The software is written in Java and runs with the Java Web Start package available free of charge from Sun Microsystems, Inc. The program was developed and tested on various Windows platforms. We recommend 128 MB of Random Access Memory. Approximately 10 MB of disk space is required.


Link for Java Software:

Before a Java Web Start program can be used on a computer, the supporting software must be installed. This is needed only 1 time per computer no matter how many different applications use it. Sun Microsystems Inc provides this package free of charge at http://java.sun.com/products/javawebstart/. If this is the first time you are using it, just download the file from the site above. Follow the instructions given there for installations. I recommend that you accept the default values proposed in the install process.


Download/Execute Program:

Click here to start the program. If you use the program more than one time, you will be given the option of storing it on your local computer. You can then start the program without coming to this page with a web browser.



D.L. Nofziger, Department of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078. E-mail: dln@okstate.edu



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