USGS
Water Resources Applications Software

FEQ

Full Equations model


Information

Summary of FEQ

Version history

UNIX or DOS installation instructions (README file)

FEQ on-line help resources

How to order U.S. Geological Survey printed documentation

How to register to receive software update and enhancement notices

Software

Known bug in side-weir routine

Point Flow Block has been replaced
Starting with version 8.92 dated 1997/06/18, point inflows to internal nodes (within branches) are no longer supported. Inflows to a reach that are limited to a point should be implemented by subdividing the reach to create a junction. The inflow is then input as a boundary condition (Code 6) at the upstream node of a dummy branch (Code 15).

Selection of the following options preceded by a binary icon retrieves a compressed UNIX tar file or a self-extracting DOS executable. A README file containing installation instructions is included with each of the software distribution files. There are separate README files for the UNIX and DOS distributions.

The Free Software Foundation's gunzip is necessary to uncompress the UNIX tar files available below. However, some World Wide Web browsers automatically uncompress retrieved files. Thus, running gunzip as stated in the installation instructions may be unnecessary.

FEQ compiled for...

[BINARY ICON] Data General AViiON (3MB)

[BINARY ICON] IBM-compatible PC, 386 or higher with math coprocessor (3.1MB)

[BINARY ICON] IBM-compatible PC, 386 or higher with math coprocessor (includes source) (3.8MB)

FEQ source code for compilation under...

[BINARY ICON] UNIX (3MB)

[BINARY ICON] DOS (2.9MB)

The above software can also be accessed via anonymous FTP from water.usgs.gov in the /pub/software/surface_water/feq directory.

Documentation

How to order U.S. Geological Survey printed documentation

Franz, D.D., and Melching, C.S., 1997, Full Equations (FEQ) model for the solution of the full, dynamic equations of motion for one-dimensional unsteady flow in open channels and through control structures: U.S. Geological Survey Water-Resources Investigations Report 96-4240, 258 p.

Browse the FEQ documentation or retrieve and print one of the following:

FEQ documentation, Portable Document Format (PDF) (774K)
[BINARY ICON] FEQ documentation, PostScript, gzip-compressed for UNIX (992K)
[BINARY ICON] FEQ documentation, PostScript, self-extracting DOS executable (1MB)

Franz, D.D., and Melching, C.S., 1997, Full Equations Utilities (FEQUTL) model for the approximation of hydraulic characteristics of open channels and control structures during unsteady flow: U.S. Geological Survey Water-Resources Investigations Report 97-4037, 205 p.

Browse the FEQUTL documentation or retrieve and print one of the following:

FEQUTL documentation, Portable Document Format (PDF) (699K)
[BINARY ICON] FEQUTL documentation, PostScript, gzip-compressed for UNIX (592K)
[BINARY ICON] FEQUTL documentation, PostScript, self-extracting DOS executable (608K)

Point of contact for FEQ:

U.S. Geological Survey
Hydrologic Analysis Software Support Program
437 National Center
Reston, VA 20192
(electronic mail: h2osoft@usgs.gov)

USGS Surface-Water Software Page
The URL for this page is http://water.usgs.gov/software/feq.html
This page is maintained by <h2osoft@usgs.gov>
Last modified: 17 Sep 2001