case.sif

! Test case for capacitance matrix computation using 
! library functionality.

Check Keywords Warn

Header
  Mesh DB "." "plates"
End

Simulation
  Max Output Level = 5
  Coordinate System = Cartesian
  Simulation Type = Steady State
  Steady State Max Iterations = 1
End

Constants
!  Permittivity Of Vacuum = 8.8542e-12
!  This one is changed to one to allow easier verification
  Permittivity Of Vacuum = 1.0
End

Body 1
  Equation = 1
  Material = 1
End

Equation 1
  Active Solvers(2) = 1 2
  Calculate Electric Energy = True
End

Solver 1
  Equation = Stat Elec Solver
  Variable = Potential
  Variable DOFs = 1
  Procedure = "StatElecSolve" "StatElecSolver"

  Linear System Solver = Iterative
  Linear System Iterative Method = BiCGStab
  Linear System Max Iterations = 200
  Linear System Convergence Tolerance = 1.0e-07
  Linear System Preconditioning = ILU1
  Linear System ILUT Tolerance = 1.0e-03

!  Linear System Scaling = False


  Nonlinear System Max Iterations = 1
  Nonlinear System Convergence Tolerance = 1.0e-4
  Nonlinear System Newton After Tolerance = 1.0e-3
  Nonlinear System Newton After Iterations = 10
  Nonlinear System Relaxation Factor = 1
  Steady State Convergence Tolerance = 1.0e-4

  Constraint Modes Analysis = Logical True
  Constraint Modes Lumped = Logical True

! In this case computes a symmetric capacitance matrix
  Constraint Modes Fluxes = Logical True
  Constraint Modes Matrix Symmetric = Logical True
End

Solver 2
  Exec Solver = never
  Equation = "result output"
  Procedure = "ResultOutputSolve" "ResultOutputSolver"
  Output File Name = case
  Vtu Format = Logical True

! This enforces the constraints to be written to individual files 
  Constraint Modes Analysis = Logical True
End



Material 1
  Relative Permittivity = 1
End

Boundary Condition 1
  Target Boundaries = 1

  Potential = 0.0
End

Boundary Condition 2
  Target Boundaries = 2

  Constraint Modes Potential = Logical True
End

Boundary Condition 3
  Target Boundaries = 3

  Constraint Modes Potential = Logical True
End

Boundary Condition 4
  Target Boundaries = 4

  Constraint Modes Potential = Logical True
End

Boundary Condition 5
  Target Boundaries = 5

  Constraint Modes Potential = Logical True
End

Boundary Condition 6
  Target Boundaries = 6

  Constraint Modes Potential = Logical True
End

Solver 1 :: Reference Norm = Real 0.27012654