USGS Groundwater Information
New & Noteworthy
USGS in Your State
USGS Water Science Centers are located in each state.
CFP: Documentation of a Conduit Flow Process for MODFLOW-2005
By W. Barclay Shoemaker (U.S. Geological Survey, Fort Lauderdale, Florida),
The conduit flow process for MODFLOW-2005 (CFP) has the ability to simulate turbulent or laminar groundwater flow conditions by:
Conduit flow pipes (CFPM1) may represent:
Pipes can be fully or partially saturated under laminar or turbulent flow conditions, but should be generally horizontal and full if vertical.
Preferential flow layers (CFPM2) may represent:
In this second case, the input data are effective parameters, such as a very high hydraulic conductivity, representing multiple features.
The Conduit Flow Process for MODFLOW-2005 was developed with the support of the USGS Groundwater Resources Program.
First official release version 1.0 was released for publication April 14, 2008.
Current version 1.8.00 was released for publication February 23, 2011. Refer to the release.txt in the download file for complete release history.
Source Code and Documentation
Download CFP version 1.8 (13.5MB ZIP file). File includes:
A list of reports & articles is also available.
Points of Contact and Support
Support is provided for correcting bugs and clarification of how the code is intended to work. Only limited assistance can be provided for applying CFP to specific problems by contacting USGS online or by directing correspondence to the points of contact listed below.
User Email List
If you want to be alerted to updates in the CFP, please contact W. Barclay Shoemaker.
Other USGS Groundwater Software
The USGS develops groundwater , water-quality, surface-water, and other water-resources software for use by the USGS in fulfilling its mission. Most of this software is available online for download at no charge.
Disclaimers and Notices
Please refer to the USGS Software User Rights Notice for complete use, copyright, and distribution information. The USGS provides no warranty, expressed or implied, as to the correctness of the furnished software or the suitability for any purpose. The software has been tested, but as with any complex software, there could be undetected errors. Users who find errors are requested to report them to the USGS.
References to non-USGS products, trade names, and (or) services are provided for information purposes only and do not constitute endorsement or warranty, express or implied, by the USGS, U.S. Department of Interior, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy.
Note: Some or all of this information is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of the free Adobe Reader from the Adobe web site. Visit http://www.adobe.com/accessibility/ for free tools that allow visually impaired users to read PDF files.