Use the Global Evaluation Sweep (
) derived values node to vary a small number of model parameters as an evaluation sweep during postprocessing. A global evaluation sweep can be useful for postprocessing of reduced models, for example. To add this node, right-click the
Derived Values node or any
Evaluation Group node and choose
Global Evaluation Sweep from the
More Derived Values or
More Evaluations menu, respectively.
Use the Sweep type list to specify the type of sweep to perform. The
Specified combinations type (the default) sweeps over a number of given combinations of values, while the
All combinations type sweeps over all combinations of values. Using all combinations can lead to a very large number of sweeps.
Use the table with Parameter name and
Parameter value list to specify parameter names and values for the global evaluation sweep. Use the
Add button (
) to add a row to the table. Each row has one parameter name, a corresponding parameter value list, and an optional unit. The unit becomes orange if the unit that you specify does not match the unit given for the parameter where it is defined. For the
Specified combinations sweep type, the list of values must have equal length. When you click in the
Parameter value list column to define the parameter values, you can click the
Range button (
) to define a range of parameter values. The parameter unit overrides the unit of the global parameter. If no parameter unit is given, parameter values without explicit dimensions are considered dimensionless. Use the
Move Up (
),
Move Down (
), and
Delete (
) buttons as needed. In addition, use the
Clear Table button (
) to clear the entire table. Click the
Range button (
)when the focus is in a
Parameter value list cell to define a list of parameter values using the
Range dialog box.
If more than one parameter name have been specified, the lists of parameter values are interpreted as follows: Assume that the parameter names are p1 and
p2, and that
p1 has the list 1 3 and
p2 has the list 2 4. For the
Specified combinations sweep type, the solver first uses
p1 equal to
1 and
p2 equal to
2. Thereafter, it uses
p1 equal to
3 and
p2 equal to
4. And when the sweep type is
All combinations, the sweep uses the following order for the parameter combinations: 1 2, 1 4, 3 2, and 3 4.