Hivel2D users manual
Card type
ND
Description
Defines the coordinates of a node
Required
No
Format
ND id x y z
Sample
ND 84 120.4 380.3 5632.0
Field
Variable
Value
Description
1
id
+
The id of the element
2-4
x,y,z
The nodal coordinates
Hydrodynamic Flow File
Two-dimensional finite element geometry files are stored in a 2D GEO file. The file
format is shown in Figure A5. A sample geometry file is shown in figure D3 (Appendix
D).
GRAV
/* Gravitational Acceleration */
MCON
/* Conversion coefficient for manning's n*/
TURB
/* Turbulence coefficients for smooth and rough region* /
TIME
/* Time step and temporal derivative order */
STEP
/* Number of time steps and interval */
ITER
/* Number of iterations and convergence criteria */
PGWC
/* Petrov Galerkin coefficients for model stability */
BIN
/* Inflow locations by nodes */
BIS
/* Inflow locations by string */
BOS
/* Outflow locations by string */
MTYP
/*Material type and manning's n for each */
Figure A5. 2D Geometry File Format.
The card type used in the hydrodynamic flow file are as follows:
29
Appendix A File Formats
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