• Solver Fortran File: MMG2D_MetricIntersect.F90
• Solver Name: ElmerIce_MeshAdapt2D(MMG2D_MetricIntersect)
• Required Output Variable(s):
  • (1) Metric 1_2
• Required Input Variable(s):
  • (1) Metric 1
  • (2) Metric 2
• Optional Output Variable(s): None
• Optional Input Variable(s): None

This is a pseudo solver (i.e. it is not solving an equation).

This solver is used for the mesh adaptation (Mesh Adaptation) to perform the intersection of two anisotropic metric M_1 and M_2.

The intersection of two metrics M_1 and M_2 is given by (Alauzet et al., 2007):

with the matrix where the columns are the normalised eigenvectors , of and .

M_1 and M_2 can be computed using the MMG2D_MetricAniso Solver.

A variable containing the metric M_i must have 3 dofs (M_{11},M_{22},M_{12}).

Solver 6
   Equation = "Metric"
   Variable = -nooutput dumy

   Procedure = "ElmerIce_MeshAdapt2D" "MMG2D_MetricIntersect"

  Optimize Bandwidth = False


   Metric Variable Name = String "M1M2"
   Metric 1 Variable Name = String "M2"
   Metric 2 Variable Name = String "M1"

   Exported Variable 1 = -dofs 3 "M1M2"
End

An example for anisotropic mesh adaptation using 2 varaibles can be found under [ELMER_TRUNK]/elmerice/Tests/MMG2D_Aniso2.