ERDC/CHL CETN-IV-27
September 2000
difference
2.90
2.50
2.10
1.70
1.30
0.90
0.50
0.10
-0.30
-0.70
-1.10
-1.50
-1.90
Figure 6. A filled contour plot of changes in velocity (units in ft/s) that illustrates cause and effect on
velocity fields associated with engineered modifications to an inlet (To convert feet per second to
meters per second, multiply by 0.3048)
SURFACEWATER MODELING SYSTEM (SMS) FUNCTIONALITY: The SMS was
developed by the Engineering Computer Graphics Laboratory at Brigham Young University
(BYU) under sponsorship by the U.S. Army Corps of Engineers and the U.S. Federal Highway
Administration (FHWA). The SMS is a pre- and post-processor for numerous hydrodynamic
modeling programs including ADCIRC, FESWMS, HIVEL2D, RMA2, RMA4, and WSPRO. It
is a pre- and post-processor for surface-water modeling and analysis (BYU 1999). Further
information about the SMS can be located at the following address:
processing capability of SMS to produce an array of contour and velocity vector plots from
hydrodynamic model results. In addition, the SMS Data Calculator feature is discussed for
creating data sets that aid in discerning flow and sediment transport behavior.
The SMS contains the capability for creating contour plots of scalar data on a finite-element
mesh. Three different types of contours are available, including normal linear contours, color fill
between contours, and cubic spline contours. The user controls the number of contours, the
contouring interval, minimum and maximum contour values, labeling options, bolding contours,
and the color scale. SMS also can produce vector plots from vector data on a finite element
mesh. The user controls the arrowhead style and size, vector length, vector placement and
density, and color. The user can also vary the vector length and vector color proportionately
with the velocity magnitude.
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