Control Variable Bounds
The Control Variable Bounds node specifies simple bounds for its parent Control Variable Field node. You can only add one single Control Variable Bounds node for each Control Variable Field.
Bounds
By default, both lower and upper bounds are active and set to 0, which constraints the control variable field to be identically zero everywhere. Enter new Lower bound and Upper bound values to specify an allowed range for the control variable, or deactivate one of the bounds to specify a one-sided bound.
Bound expressions must be parameter expressions, meaning that they must only contain numbers, model parameters, and physical constants. Such expressions can be evaluated to a number independently of the geometry and the multiphysics model solution.