COMSOL Multiphysics™

meshenrich
TABLE 1-4: VALID PROPERTY/VALUE PAIRS
PROPERTY 2D 3D VALUE DEFAULT DESCRIPTION
Minareaeplane ♦ numeric 0.005 Minimum relative area of
face to be considered
planar.
Neighangle ♦ ♦ numeric 0.35 Maximum angle between a
boundary element and a
neighbor that will cause
the elements to be part
of the same boundary
domain if possible.
Out ♦ ♦ fem |
mesh
mesh
Output variables.
Planarangle ♦ numeric 0.01 Maximum angle between
boundary element normal
and a neighbor that will
cause the element to be a
part the planar face if
possible.
Algorithm
These are the main steps of the 3D algorithm:
1 If the domain information (dom field) for the subdomain elements is missing, all
subdomain elements are assigned the same domain label.
2 Missing boundary elements are added. Boundary elements are required at the
boundaries of the subdomains.
3 The up-down subdomain information (ud field) for the boundary elements is
made complete.
4 If the domain information (dom field) for the boundary elements is missing, the
face domain partitioning is determined according to the following steps.
- Search for planar faces according to Planarangle and Minareaplane.
- Search for extruded faces according to Extrangle and Minareaextr.
- Search for faces with constant curvature according to Facecurv and
Minareacurv. This search is only done for second order elements.
- The remaining boundary elements are divided into face domains according to
Neighangle and Faceangle.
5 Exceedingly small faces are merged with neighboring faces according to
Facecleanup.
6 The faces are parameterized (param field).
257