Boundary sets#
The boundary sets (faces in 3D or lines in 2D) must be ordered properly such that the normals may be calculated, positions interpolated, and surface integrals evaluated over them. Incorrect definitions of these sets are often responsible for boundary condition problems.
The following boundary types are available:
CODE |
DESCRIPTION |
|---|---|
|
linear (2 node) line |
|
quadratic (3 node) line |
|
linear 3 node triangle face |
|
quadratic 6 node triangle face |
|
linear 4 node quadrilateral face |
|
quadratic 8 node quadrilateral face |
