COMSOL Multiphysics™

meshcaseadd
Purpose
meshcaseadd
Add new mesh cases
Syntax fem = meshcaseadd(fem, ...)
Description
fem = meshcaseadd(fem) adds one or several new mesh cases to the FEM
structure FEM. The mesh cases are typically used as hierarchy in the Geometric
multigrid solver. The new mesh cases are constructed by coarsening or refining the
mesh (or keeping the same mesh), and possibly changing the order of the shape
functions. If the order is changed, the integration point order and the constraint
point order is changed accordingly.
The function meshcaseadd accepts the following property/value pairs:
TABLE 1-2: VALID PROPERTY/VALUE PAIRS
PROPERTY VALUES DEFAULT DESCRIPTION
Mcasekeep
Mcaseorig
Mcaseorig
array of nonnegative
integers | all
array of nonnegative
integers
lowest
existing
mesh case
Mesh cases to keep
Original mesh case(s)
Meshscale array of positive numbers 2 Scale factors for mesh
size h
Mgauto meshscale | shape |
both | meshrefine |
explicit
Method for generating
mesh cases
Mggeom array of positive integers all Geometry numbers
Nmcases positive integer 1 Number of new mesh
cases to generate
Report on | off on Display progress
Rmethod regular | longest regular Mesh refinement
method
Shapechg array of integers -1 Change in shape
function orders
The function meshcaseadd operates on the FEM structures corresponding to the
geometries Mggeom. The FEM structures for other geometries are left unaffected.
Before creating new mesh cases, all existing mesh cases except Mcasekeep are
deleted.
250 | CHAPTER 1: COMMAND REFERENCE