Class 3 Error
In the DOMAIN editor in CFX-Pre, if the reference pressure value is deleted, either by deleting the number in the value-units editor, or by switching to expression mode and setting a blank expression, the Reference Pressure will silently be set to its default (1 [atm] at present). In other words, this value is not displayed on the form but, if the form is committed, the default value is committed for the parameter.
This is due to a bug in the CF
Ensure that a value or expression is explicitly set for the Reference Pressure.
ANSYS CFX Release 11.0 Service Pack 1.