CHEMFLO

Description

CHEMFLO enables users to simulate water movement and chemical transport in unsaturated soils by solving the Richards equation (water) and the convection-dispersion equation (chemicals). Results can be displayed in graphical form for:

Water content, matric force potential, driving force, conductivity, and flux density of water versus distance or time
Concentration and flux density of a chemical as a function of distance or time
Cumulative fluxes of water and chemical and total mass of chemical in the soil as a function of time. Results also can be output in tabular form.

Specifications

Version	1.3
Release Date	August 1990
Development Status	general release
Development Information
Operating System	DOS
Development Language
Intended Audience
Key Words
Related Web Sites

Minimum System Requirements

To run CHEMFLO, you will need the following:

IBM-compatible personal computer
640 KB RAM
1 MB of free hard-disk space
DOS 2.0 or higher
CGA graphics
Math co-processor (highly recommended)

Downloads

Unzipping Software

You will need unzipping (compression) software to uncompress ZIP files. If you need to load unzipping software on your computer, free software is available for download on the internet at the following sites:

Installation and program files (ZIP) (111 Kb)
US EPA. (1989) "CHEMFLO, One-Dimensional Water and Chemical Movement in Unsaturated Solids." Publication No. 600/8-89/076.

Installation Instructions

Refer to the CHEMFLO user’s manual for further instructions.
Go to Windows Explorer and create a directory named CHEMFLO.
Download the installation and program files to the new directory.
In Windows Explorer, locate and unzip the installation and program files to the new directory.
Double-click on the CHEMFLO.EXE file. A description of files unzipped to the directory are provided below:
- Installation and Program Files – This file contains the executable program.
- SOIL.S – This file contains soil hydraulic data for several soils. These can be used tobecome familiar with the software. You may then add data for other soils of interest to you.
- README – This file contains notices, which are not included in this manual, regarding the operation of current version of the software.
- CONFIG.SYS – This file may be used to install the ANSI.SYS device driver, provided you are not currently using any CONFIG.SYS file on your bootup disk. If you already have a CONFIG.SYS file on your system, it should be modified to install the ANSI.SYS device as explained in the DOS manual.

You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.

Office of Research & Development | National Risk Management Research Laboratory