The Trn Stats tab for the Output
Control
object contains settings that specify the transient
statistics data to be included in the results files; for details,
see Working with Transient Statistics.
Note: Transient statistics are not written for Selected Variables
or Smallest
results, backup results, or transient results,
unless Output Variable Operators is set to All
.
This list box is used to select Transient Statistics
objects for editing or deletion. Transient Statistics
objects can be created or deleted with the icons that appear beside
the list box.
The following statistics are evaluated at each node over the history of the simulation:
Arithmetic Average
Minimum
Maximum
Standard Deviation
Root Mean Square
Full
If a selected output variable is a vector or a tensor, the selected
operation Option is applied to each component
of the variable separately. The result for each component is included
in the results file. For example, if Velocity
is selected as a variable, using the Maximum
option, the results file will include the maximum value of each
of the three velocity components. Note that the maximum value of each
of the components will likely have occurred at different times during
the simulation. Also note that the magnitude of the resulting velocity
components will not be the same as the maximum of the velocity magnitude
(the latter can be determined by using the Maximum
option for an additional variable defined to be the velocity magnitude).
This check box determines whether or not a Start Iteration List is used. If this check box is cleared, statistics will start (or continue, for restart runs) accumulation during the first timestep of the current run.
Enter a comma-separated list of iteration numbers corresponding to the variables selected in the Output Variables List. If the start iteration list contains fewer entries than the Output Variables List, then the final start iteration in the list is applied for all remaining output variables.
The start iteration for a given transient statistic specifies the timestep index at which statistic accumulation begins. Prior to that timestep, statistics are initialized, as outlined in Working with Transient Statistics.
Note: In the case of restarted transient runs, iteration numbers are interpreted as the total accumulated timestep index rather than the index for the current run.
This check box determines whether or not a Stop Iteration List is used. If this check box is cleared, the statistics will continue accumulation until the end of the run.
Enter a comma-separated list of iteration numbers corresponding to the variables selected in the Output Variables List. If the stop iteration list contains fewer entries than the Output Variables List, then the final stop iteration in the list is applied for all remaining output variables.
The stop iteration for a given transient statistic specifies the timestep index at which statistic accumulation ceases. After that timestep, statistics are simply not modified.
Note: In the case of restarted transient runs, start and stop iterations are interpreted as the total accumulated timestep index rather than the index for the current run.