About Validation Checks for Initial Conditions
When you click OK in the Initial Condition Definition dialog box, the following validation checks are performed in the order shown:
1. Validate name—Checks for other initial conditions with the same name.
2. Validate the inputs of the last selected velocity constraint–Checks if the direction is entered correctly, for example, if the entered vector is not equal to (0, 0, 0), if an edge selection is valid, if point-to-point selections are valid.
This validation check is usually done when you select another velocity constraint, but you can also perform the check here.
3. Validate all velocity constraints—Checks if the selection is valid, for example, a valid point if you are specifying point velocity.
4. Run a velocity analysis in the engine—Checks that the velocity constraints are valid as a group.