COMSOL Multiphysics™

meshsmooth
Purpose
meshsmooth
Smooth interior mesh vertices and improve quality of a mesh.
Syntax
Description
fem.mesh = meshsmooth(fem,...)
fem = meshsmooth(fem,’out’,{’fem’},...)
mesh = meshsmooth(fem,...) improves the quality of the elements in the mesh
fem.mesh by adjusting the mesh vertex positions and by swapping mesh edges.
fem = meshsmooth(fem,'out',{'fem'},...) modifies the fem structure to
include the new mesh object in fem.mesh.
In 3D, meshsmooth is supported for meshes containing tetrahedral elements only.
The function meshsmooth accepts the following property/values:
TABLE 1-14: VALID PROPERTY/VALUE PAIRS
PROPERTY 2D 3D VALUE DEFAULT DESCRIPTION
Jiggleiter ♦ numeric 5 Maximum number of jiggling
iterations
Qualoptim ♦ off | mean | min Optimization method
min | optim
Out ♦ ♦ fem | mesh mesh Output parameters
Subdomain ♦ ♦ integer
vector | all
| none
all
Specifies the subdomains that
are smoothed
Algorithm
2D
Each mesh vertex that is not located on the boundary is moved such that the quality
of the surrounding element increases. This process is controlled via the properties
Jiggleiter and Qualoptim.
Jiggleiter specifies the maximum number of jiggling iterations. The default value
is 5.
Qualoptim specifies the technique that is used to improve the quality of the mesh.
• Off means that no improvement operations are performed.
• Mean means that jiggling is repeated until the mean element quality does not
significantly increase, or until the bound Jiggleiter is reached. Furthermore,
after every third jiggling iteration, edge swapping operations are performed.
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