COMSOL Multiphysics™

asseminit
TABLE 1-3: VALID PROPERTY/VALUE PAIRS
PROPERTY VALUE DEFAULT DESCRIPTION
Outcomp cell array of strings Solution components to
output
Solnum integer vector Solution numbers to use in
source solution
T real vector Time for evaluation
U solution object |
solution vector |
scalar | FEM
structure
0 Solution for evaluation
Xmesh
extended mesh
object
fem.xmesh
Extended mesh for source
solution
The properties Blocksize, Complexfun, Const, and Outcomp are described in
femsolver.
The property Framesrc is needed when mapping a solution after remeshing in a
moving mesh simulation. In such a case, the source geometry does not conform to
the destination geometry. Rather, the deformed source mesh agrees with the
destination geometry if the source mesh is viewed in a certain frame. The property
Framesrc contains the name of this frame, or if there are several source geometries,
a frame name for each source geometry.
The geometry map vector Gmap tells for each geometry g in the destination FEM
structure fem the corresponding geometry number in the source FEM structure,
namely Gmap(G). If Gmap(G)=0, there is no corresponding source geometry. The
default is a trivial Gmap, that is, the geometry numbers are unchanged.
The initial values are given by the property Init. This can be:
• A solution object or a solution vector, corresponding to the extended mesh
Xmesh. That solution will be mapped to the current xmesh (fem.xmesh).
• A cell array of alternating DOF names and expressions, or a single expression. The
DOFs will be given the values of the expressions, evaluated for the solution U on
the xmesh Xmesh. In this context, a DOF name can also be the name of the time
derivative of a DOF. For example, ut is the time derivative of the DOF u.
• A FEM structure. The solution in that FEM structure will be mapped to the
current xmesh.
• A scalar. The scalar will be expanded to a solution vector.
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