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Merge pull request dealii#13847 from simonsticko/add_missing_changelogs
Add a changelog for the new CutFEM functionality in NonMatching.
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New: Several classes have been added to the NonMatching namespace for using cut | ||
finite element methods (CutFEM): | ||
<ul> | ||
<li> | ||
MeshClassifier identifies how active cells and faces are located relative | ||
to the zero contour of a level set function, by associating one of the | ||
values of the enum LocationToLevelSet: {inside, outside, intersected}, with | ||
each cell/face. | ||
</li> | ||
<li> | ||
QuadratureGenerator creates immersed quadrature rules over the 3 regions of | ||
a BoundingBox defined by the sign of a level set function. | ||
FaceQuadratureGenerator creates the same type of quadratures but over a | ||
face of a BoundingBox. DiscreteQuadratureGenerator and | ||
DiscreteFaceQuadratureGenerator create the same type of quadratures over a | ||
cell/face when the level set function lies in a finite element space. | ||
</li> | ||
<li> | ||
FEImmersedSurfaceValues is a FEValues-like class for evaluating real space | ||
values based on an ImmersedSurfaceQuadrature, i.e., for integrating over | ||
the zero contour in a cell. | ||
</li> | ||
<li> | ||
NonMatching::FEValues simplifies assembling by creating dealii::FEValues | ||
and FEImmersedSurfaceValues objects initialized with the 3 different | ||
immersed quadratures of a cell. Analogously, NonMatching::FEInterfaceValues | ||
creates dealii::FEInterfaceValues objects initialized with immersed | ||
quadrature rules over a face. | ||
</li> | ||
</ul> | ||
|
||
<br> | ||
(Simon Sticko, Maximilian Bergbauer, Martin Kronbichler, 2022/05/29) |