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SED2D-WES Version 4.3 Beta
TZ CARD
COMPUTATION TIME CONTROL
TZ CARD
Required
Field
Variable
Value
Description
0,C1-2
IC1
TZ
Card group identifier
≥0
3
NTTS
Maximum number of cycles
<0
Default = 0
≥0
1
DT
Length of a time step for SED2D-WES simulation (decimal
hours). Note: The capability exists to specify a time step
that is different from the RMA2 time step when using a
dynamic RMA2 solution file. However, this is NOT
RECOMMENDED. If the SED2D time step is less than
the RMA2 time step then a linear interpolation will be
performed to evaluate the velocities at the intermediate time
steps. The SED2D time step cannot be larger than the
RMA2 time step. WARNING: It is highly recommended
that the SED2D time step be set exactly equal to the
RMA2 time step. Severe accuracy errors can result from
using an interpolated flow field.
<0
Default = 0.0
≥0
2
TMAX
Maximum time for a simulation (decimal hours)
<0
Default = 0.0
≥0
4
DT_REPEAT
Time increment for RMA2 solution file rewind (decimal
hours). When using a repeating hydrodynamic solution
(such as a repeating tide or a steady state hydrodynamic
solution) the time increment between the last time step in
the RMA2 solution file and the first time step of the
rewound RMA2 solution file must be specified. For steady
state hydrodynamics let DT_REPEAT = TMAX to avoid re-
reading the RMA2 file every time step.
<0
Default = DT
76
WORKING DRAFT
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