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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

11. Function Table Description


Several function tables are used in FEQ to represent the various functions in unsteady-flow analyses. Some of these tables are computed with the utility program FEQUTL (Franz and Melching, 1997), and others are entered manually from other sources. The origin of the tables is not important as long as they are in the expected structure and format. The concepts and mathematical relations of the tables are described below. A detailed discussion of the formats and examples of some of the tables are given in "Input Description to the Full Equations Model" (section 13). Examples of all of the function tables may be obtained by electronic retrieval from the World Wide Web (WWW) at http://water.usgs.gov/software/feq.html and by anonymous File Transfer Protocol (FTP) from water.usgs.gov in the pub/software/surface_water/feq/ directory.

Three broad classes of function tables are applied in FEQ: 1-D (one argument), 2-D (two arguments), and 3-D (three arguments). Several options are available within each of the first two classes. The 1-D tables are the simplest and are presented first.

11.1 One-Dimensional Function Tables
11.2 Two-Dimensional Function Tables
11.3 Three-Dimensional Function Tables
11.4 Summary of Function Tables

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