COMSOL Multiphysics™

meshinit
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).
The minit property is related to the way the mesh algorithm works. By turning on
minit you can see the initial discretization of the boundaries. This property is only
valid for mlevel sub.
Hauto is available in 2D and 3D and is an integer between 1 and 9. This integer is
used to set several mesh parameters in order to get a mesh of desired size. Smaller
values of hauto generate finer meshes with more elements.
TABLE 1-9: MESH PARAMETERS SET BY THE PROPERTY HAUTO IN 2D
HAUTO HMAXFACT HCURVE HGRAD HCUTOFF
1 0.15 0.2 1.1 0.0001
2 0.3 0.25 1.2 0.0003
3 0.55 0.25 1.25 0.0005
4 0.8 0.3 1.3 0.001
5 1 0.3 1.3 0.001
6 1.5 0.4 1.4 0.005
7 1.9 0.6 1.5 0.01
8 3 0.8 1.8 0.02
9 5 1 2 0.05
TABLE 1-10: MESH PARAMETERS SET BY THE PROPERTY HAUTO IN 3D
HAUTO HMAXFACT HCURVE HGRAD HCUTOFF HNARROW
1 0.2 0.2 1.3 0.001 1
2 0.35 0.3 1.35 0.005 0.85
3 0.55 0.4 1.4 0.01 0.7
4 0.8 0.5 1.45 0.02 0.6
5 1 0.6 1.5 0.03 0.5
6 1.5 0.7 1.6 0.04 0.4
7 1.9 0.8 1.7 0.05 0.3
270 | CHAPTER 1: COMMAND REFERENCE