NWS FLDWAV MODEL
VERSION/DATE: Version 2.0.0 (June 1, 2000)
DOCUMENTATION (335 Pages):
NWS FLDWAV MODEL:
THEORETICAL DESCRIPTION by D.L. Fread
USER DOCUMENTATION by J.M. Lewis
November 28, 1998 (Chapter 20 Updated with Ver. 2.0 input information)
Hydrologic Research Laboratory - Office of Hydrology
National Weather Service (NWS), NOAA
MODEL DESCRIPTION AND CAPABILITIES
The NWS FLDWAV model is a combination of the NWS DAMBRK and DWOPER models. Although each of these models are quite powerful, limitations exist that hinder their flexibility. Limitations of DWOPER include its inability to interpolate cross sections when needed, its inability to handle supercritical flow, its inability to model dam breaks and assorted reservoir outflow controls, and its limited levee capability. DAMBRK can only model single rivers; also, fixed arrays for the number of time steps and number of cross sections severely limit the size of river systems that could be modeled without breaking up the problem into several datasets. FLDWAV includes the best capabilities of both models and a few enhancements that make it the model of choice. For a more detailed description of the FLDWAV model, the user is referred to papers by Fread and Lewis(1988) and Fread (1993).
FILES INSTALLED (C:\FLDWAV where C = installation drive)
FLDWAV.EXE - NWS FLDWAV model
FLDGRF.EXE - Graphical output utility to display FLDWAV output
EX1-EX10 - Example files (Same as examples in Section 22 of the documentation)
*.FON - 2 Font files needed to run FLDGRF.EXE. These files must be in the same directory as the graphics files created by FLDWAV.
DATAFILE - File containing switch to let FLDWAV know how to access input/output files
(DEFAULT) 0 FLDWAV will prompt the user for file names
1 Input/output filenames will be listed in DATAFILE.
The contents of DATAFILE are (starting in column 1):
1 <== switch
EX1 <== input filename
EX1.OUT <== output filename
2 Input/output file will be on the command line when
executing FLDWAV from a DOS window.
e.g. FLDWAV EX1 EX1.OUT
The FLDWAV model requires an input file to exist which was created by the user according to SECTION 20 in the user documentation.
To run FLDWAV from a DOS window, type: FLDWAV
The user will be prompted for an input file. type: [input filename]
The user will be prompted for an output file. type: [output filename]
The user may also create a Windows shortcut for FLDWAV.