COMSOL Multiphysics™

meshmap
PROPERTY VALUE DEFAULT DESCRIPTION
meshstart mesh object empty Starting mesh
report on | off on Display progress
out fem | mesh mesh Output variables
subdomain numeric array |
auto | all |
none
auto Specifies the subdomains in 2D that are
meshed
The property edgegroups is a cell array where each cell entry, corresponding to
each subdomain/face, determines the relation between the edges defining the
boundary of the corresponding subdomain/face, and the four edges of the logical
square. If a cell entry is left empty, the meshing algorithm splits the edges bounding
the subdomain/face into the four edge groups at the vertices corresponding to the
four sharpest corners. The relation between the edges of each subdomain/face and
the edges of the logical square is specified as a cell array, where each cell entry
contains the indices to the edges in the real geometry that correspond to one edge
of the logical square.
The property edgelem determines the distribution of the edge elements in the
mesh. The value of this property is an even numbered cell array where the odd
entries contain edge indices, either as scalar values, or as a vectors with edge indices,
and the even entries contain scalar values or vectors specifying the edge element
distribution on the corresponding edge(s). If the edge element distribution is
specified by a scalar, the edge elements on the corresponding edge(s) are equally
distributed in arc length and the number of edge elements equals the value of the
scalar. To get full control over the edge element distribution on an edge, the vector
form is used. The values in the vector, that are sorted and starts with 0, specify the
placements, in arc length, of the mesh vertices along the direction of the
corresponding edge(s).
hauto is an integer between 1 and 9 that controls the element size in the generated
mesh. The default value is 5 which means that the element size is set to 1/15 in 2D
and 1/10 in 3D of the size of the geometry for the elements not affected by the
edgelem property. By changing the value of this property, the default element size
is multiplied by the following factors.
HAUTO SCALE
FACTOR
1 0.2
2 0.35
278 | CHAPTER 1: COMMAND REFERENCE