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TABS-MDS
NC CARD
CONSOLIDATION CONSTANTS
NC CARD
Field
Variable
Value
Description
0,C1-2
IC1
CC
Card group identifier
1
IGS
+
sediment grain size
2
WHO(IGS)
+
Nominal settling velocity (ft/sec or m/s).
Default =
3
WH1(IGS)
+,0
Consolidation exponent
Default =
4
WH2(IGS)
+
Consolidation coefficient
Default =
NOTE: The values given above are needed to solve for the bed settling
velocity in each bed layer. The bed settling velocity (WH) for a
particular bed layer is a function of the sediment concentration (CS)
in the layer. The expression for WH as a function of CS is as follows:
WH = WHO (1 - WH2 CST)WH1
Where CST is the total sediment concentration in a given layer, and
WHO,WH1, and WH2 are weighted averages (by sediment fraction) of
the values of these parameters for all grain sizes.
Note also that WHO is also used as the value of the hindered settling velocity
for suspended transport.
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