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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

APPENDIX 3: Setting the System Size

The key parameter values in setting the system size are the maximum number of branches, MNBRA, the maximum number of free nodes, MNFREE, and the maximum number of extra nodes on branches, MEXTRA. The other parameter value that may need to be changed is the maximum number of rows in the function table storage, MRFTAB. Other parameter values can be changed, but the default values are generally large enough to represent most stream systems. If many input or output files are going to be used, then MNFIN, MNFOUT, and MRRBUF should be increased.

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