Global Evaluation Sweep
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.
See Common Results Node Settings for information about the Data and Expressions sections.
Parameters
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.
The list of parameters in the Parameter name column contains parameters from Parameters nodes where the Show in parameter selections check box is selected.
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.