Transport Functions. All sediment transport functions available in SAM.sed
are listed here. The user can select functions to be calculated. The Laursen-
Madden (1985) function is simply the one function that is on by default when the
input file has been created by SAM.hyd.
Flow Characteristics. Generally, these fields would be filled with the
calculated data from a SAM.hyd-generated input file. However, the user can
input this information if so desired. A "column" of numbers is considered
together for calculation purposes. The maximum is 10 columns.
Figure 8.3. DMAX is a required input whereas the specific gravity of sediment
is optional (the value shown is the default value). The program will accept up to
18 points on the bed material gradation, and they must be input from largest
grain size to smallest. However, a grain size for 100% finer and for 0% finer is
not required.
Figure 7.3. Bed Material Gradation data input screen.
" + " Box. This button toggles, opens/closes, a small window which will
receive selected output. The output coming to this window cannot be selected by
the user.
Display Entire Output File. When this box is checked the output file will
open in its own window (using Notepad) after calculations are complete. If this
button is not checked, some input will echo to the screen in the area mentioned
above. The entire output file can also be viewed by checking the View menu of
the SAM main window and selecting "Sediment Transport Results."
Solve. This button causes SAM.sed to execute.
Sample Input Data
In addition to the SAMwin option to create or edit a sediment transport input
file, the input data file can be prepared with a system editor, or by the hydraulics
calculations in SAM.hyd. (SAM.m95, which reads the HEC-2 output to create a
SAM.sed input file, is not available in SAMwin). Of these, however, only
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Chapter 7
Input Requirements and Program Output for SAM.sed
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