## Constraint dialog

The following boxes are described below: Ø Absolute Constraints Ø User-Defined Constraints
### Absolute Constraints - Describes the hard constraints imposed to ensure that only realistic airfoils are evaluated by the flow solver. ### User-Defined Constraints - Soft constraints – described in chapter 7. - Immune system constraint imposition has not been tested thoroughly. - Penalty function constraint imposition is described in chapter 7. - Select the parameters to be constrained, upper and lower bounds, and weight.