### Inhomogeneous Conditions

Inhomogeneous conditions can be defined between a *STEP card and an *END STEP card only.

First line:

• *BOUNDARY
• Enter any needed parameters and their value.

Following line:

• Node number or node set label
• First degree of freedom constrained
• Last degree of freedom constrained. This field may be left blank if only one degree of freedom is constrained.
• Actual magnitude of the prescribed displacement
Repeat this line if needed.

Example:

*BOUNDARY
Nall,2,2,.1


assigns to degree of freedom two of all nodes belonging to node set Nall the value 0.1.

Example:

*BOUNDARY,MASS FLOW
73,1,1,31.7


applies a mass flow rate of 31.7 to node 73. To have any effect, this node must be the midside node of a network element.

Example files: achteld.