case.sif

! Solves one normal Poisson equation using the block system machinery

Header
  CHECK KEYWORDS Warn
  Mesh DB "." "angle"
  Include Path ""
  Results Directory ""
End

Simulation
!  Max Output Level = 5
  Coordinate System = "Cartesian"
  Coordinate Mapping(3) = 1 2 3

  Simulation Type = "Steady State"
  Steady State Max Iterations = 1
  Steady State Min Iterations = 1
  Output Intervals = 1

!  Post File = "case.vtu"
End

Constants
  Gravity(4) = 0 -1 0 9.82
  Stefan Boltzmann = 5.67e-08
End

Body 1
  Name = "Body1"
  Equation = 1
  Material = 1
End

Body 2
  Name = "Body2"
  Equation = 1
  Material = 1
End

Equation 1
  Name = "Equation1"
!  Active Solvers(1) = 1
  Active Variables = Integer 1
End



Solver 1
  Block Solver = Logical True
  Equation = "Poisson"

  Variable 1 = TempA

  Steady State Convergence Tolerance = 1.0e-05
  Nonlinear System Relaxation Factor = Real 1.0
  Nonlinear System Max Iterations = Integer 100
  Nonlinear System Max Stepsize Tests = Integer 30
  Nonlinear System Convergence Tolerance = Real 1.0e-6

  Linear System Solver = "Iterative"
  Linear System Iterative Method = bicgstab
  Linear System Convergence Tolerance = 1.0e-8
  Linear System Max Iterations = 500
  Linear System Preconditioning = ILU1

  Bulk Assembly Procedure = File "./PoissonAssembly" "BulkAssembly"
End  

Solver 2
  Exec Solver = never

  Procedure = "SaveData" "SaveScalars"
  Filename = f.dat
  Variable 1 = TempA
  Operator 1 = min
  Variable 2 = TempA
  Operator 2 = max
End 


Material 1
  Name = "Material1"

  Conductivity = Real 1.0
  Reaction = Real 0.0
  Source = Real 1.0
End


Boundary Condition 1
  Target Boundaries(2) = 1 2
  TempA = Real 0
End


Solver 1 :: Reference Norm = Real 0.77824031E-01
RUN