About Auxiliary Equation-Based Nodes
The PDE Interfaces
provide an environment for specifying a model in terms of equations. In many cases, however, you may only be interested in adding an equation term or a constraint to the PDE implemented by a physics interface.
The auxiliary equation-based nodes are found under the context submenus
More>
,
Edges>
, and
Points>
. To display these in the context menu, click the
Show
button (
) on the
Model Builder
toolbar and select
Advanced Physics Options
.
These are the available nodes (listed in alphabetical order):
•
Auxiliary Dependent Variable
•
Discretization (Node)
•
Pointwise Constraint
•
Weak Constraint
•
Weak Contribution (PDEs and Physics)
•
Weak Contribution on Mesh Boundaries
•
The PDE Interfaces
•
Working with Geometric Entities
•
Domain, Boundary, Pair, Edge, and Point Conditions for PDEs