Get self capacitance simulation to work

coil_mag_solvers.yml

@@ -31,6 +31,7 @@ Magneto_Dynamics:
   Linear System Max Iterations: 5000
   Linear System Iterative Method: TFQMR
   BiCGStabL Polynomial Degree: 4
+  "Jfix: Linear System Max Iterations": 5000
   Idrs Parameter: 6
   Solver Timing: True 
 
@@ -41,7 +42,7 @@ Magneto_Dynamics_Calculations:
   Calculate Magnetic Field Strength: True
   Calculate JxB: False
   Calculate Current Density: True
-  Calculate Electric Field: False
+  Calculate Electric Field: True
   Calculate Nodal Fields: False
   Calculate Elemental Fields: True
   Linear System Solver: Iterative

coil_parasitics.py

@@ -147,14 +147,21 @@ def self_capacitance(mesh_file, sim_dir):
     bdy_ab.material = air
     bdy_ab.equation = eqn
 
+    max_num = -1
+
     # boundaries
     for name, identity in physical.items():
         if (m := re.fullmatch(r'trace([0-9]+)', name)):
             num = int(m.group(1))
+            max_num = max(num, max_num)
 
             bndry_m2 = elmer.Boundary(sim, name, [identity[1]])
             bndry_m2.data['Capacitance Body'] = str(num)
 
+    if (tr := physical.get('trace')):
+        bndry_m2 = elmer.Boundary(sim, 'trace', [tr[1]])
+        bndry_m2.data['Capacitance Body'] = f'{max_num+1}'
+
     boundary_airbox = elmer.Boundary(sim, 'FarField', [physical['airbox_surface'][1]])
     boundary_airbox.data['Electric Infinity BC'] = 'True'
 
@@ -175,8 +182,9 @@ def self_capacitance(mesh_file, sim_dir):
 
 @cli.command()
 @click.option('-d', '--sim-dir', type=click.Path(dir_okay=True, file_okay=False, path_type=Path))
+@click.option('--solver-method')
 @click.argument('mesh_file', type=click.Path(dir_okay=False, path_type=Path))
-def inductance(mesh_file, sim_dir):
+def inductance(mesh_file, sim_dir, solver_method):
     physical = dict(enumerate_mesh_bodies(mesh_file))
 
     if sim_dir is not None:
@@ -199,6 +207,8 @@ def inductance(mesh_file, sim_dir):
 
     solver_current = elmer.load_solver('Static_Current_Conduction', sim, 'coil_mag_solvers.yml')
     solver_magdyn = elmer.load_solver('Magneto_Dynamics', sim, 'coil_mag_solvers.yml')
+    if solver_method:
+        solver_magdyn.data['Linear System Iterative Method'] = solver_method
     solver_magdyn_calc = elmer.load_solver('Magneto_Dynamics_Calculations', sim, 'coil_mag_solvers.yml')
 
     copper_eqn = elmer.Equation(sim, 'copperEqn', [solver_current, solver_magdyn, solver_magdyn_calc])

self-capacitance-actually-working.sif

@@ -0,0 +1,173 @@
+Header
+  CHECK KEYWORDS "Warn"
+  Mesh DB "." "mesh"
+End
+
+Simulation
+  Mesh Levels = 1
+  Max Output Level = 7
+  Coordinate System = Cartesian
+  Coordinate Mapping(3) = 1 2 3
+  Simulation Type = Steady state
+  Steady State Max Iterations = 1
+  Output Intervals = 1
+  Timestepping Method = BDF
+  Simulation Timing = True
+  BDF Order = 1
+  Solver Input File = case.sif
+  Post File = case.vtu
+  Output File = case.result
+End
+
+Constants
+  Stefan Boltzmann = 5.6704e-08
+  Permittivity of Vacuum = 8.8541878128e-12
+  Gravity(4) = 0 -1 0 9.80665
+  Boltzmann Constant = 1.380649e-23
+  Unit Charge = 1.602176634e-19
+End
+
+! airEqn
+Equation 1
+  Active Solvers(1) = 2
+End
+
+! copperEqn
+Equation 2
+  Active Solvers(1) = 1 2
+End
+
+Solver 1
+  Equation = Static Current Conduction
+  Variable = Potential
+  Variable DOFs = 1
+  Procedure = "StatCurrentSolve" "StatCurrentSolver"
+  Calculate Volume Current = True
+  Calculate Joule Heating = False
+  Optimize Bandwidth = True
+  Nonlinear System Max Iterations = 1
+  Linear System Solver = Iterative
+  Linear System Iterative Method = CG
+  Linear System Max Iterations = 10000
+  Linear System Convergence Tolerance = 1e-10
+  Linear System Preconditioning = ILU3
+  Linear System ILUT Tolerance = 0.001
+  Linear System Abort Not Converged = False
+  Linear System Residual Output = 20
+  Linear System Precondition Recompute = 1
+End
+
+Solver 2
+  Equation = Electrostatics
+  Procedure = "StatElecSolve" "StatElecSolver"
+  Variable = PotentialStat
+  Calculate Electric Field = True
+  Calculate Electric Energy = True
+  Steady State Convergence Tolerance = 1e-05
+  Nonlinear System Convergence Tolerance = 1e-07
+  Nonlinear System Max Iterations = 20
+  Nonlinear System Newton After Iterations = 3
+  Nonlinear System Newton After Tolerance = 0.001
+  Nonlinear System Relaxation Factor = 1
+  Linear System Solver = Iterative
+  Linear System Iterative Method = BiCGStab
+  Linear System Max Iterations = 500
+  Linear System Convergence Tolerance = 1e-10
+  BiCGstabl polynomial degree = 2
+  Linear System Preconditioning = none
+  Linear System ILUT Tolerance = 0.001
+  Linear System Abort Not Converged = False
+  Linear System Residual Output = 10
+End
+
+
+
+! air
+Material 1
+  Density = 1.1885
+  Electric Conductivity = 0.0
+  Heat Capacity = 1006.4
+  Heat Conductivity = 0.025873
+  Relative Permeability = 1
+  Relative Permittivity = 1
+End
+
+! ro4003c
+Material 2
+  Density = 1790
+  Electric Conductivity = 0.0
+  Relative Permeability = 1
+  Relative Permittivity = 3.55
+End
+
+! copper
+Material 3
+  Density = 8960.0
+  Electric Conductivity = 59600000
+  Emissivity = 0.012
+  Heat Capacity = 415.0
+  Heat Conductivity = 401.0
+  Relative Permeability = 1
+End
+
+! trace
+Body 1
+  Target Bodies(1) = 3
+  Equation = 2  ! copperEqn
+  Material = 3  ! copper
+  Body Force = 1 ! electric_potential
+End
+
+! substrate
+Body 2
+  Target Bodies(1) = 1
+  Equation = 1  ! airEqn
+  Material = 2  ! ro4003c
+End
+
+! airbox
+Body 3
+  Target Bodies(1) = 2
+  Equation = 1  ! airEqn
+  Material = 1  ! air
+  Body Force = 1
+End
+
+! interface_top
+Body 4
+  Target Bodies(1) = 4
+  Material = 3  ! copper
+End
+
+! interface_bottom
+Body 5
+  Target Bodies(1) = 5
+  Material = 3  ! copper
+End
+
+
+! FarField
+Boundary Condition 1
+  Target Boundaries(1) = 6
+  Electric Infinity BC = True
+End
+
+! Vplus
+Boundary Condition 2
+  Target Boundaries(1) = 4
+  Potential = 1.0
+  Save Scalars = True
+End
+
+! Vminus
+Boundary Condition 3
+  Target Boundaries(1) = 5
+  Potential = 0.0
+End
+
+
+! electric_potential
+Body Force 1
+  PotentialStat = Equals "Potential"
+End
+

self-capacitance-working.sif

@@ -0,0 +1,154 @@
+Header
+  CHECK KEYWORDS "Warn"
+  Mesh DB "." "mesh"
+End
+
+Simulation
+  Mesh Levels = 1
+  Max Output Level = 7
+  Coordinate System = Cartesian
+  Coordinate Mapping(3) = 1 2 3
+  Simulation Type = Steady state
+  Steady State Max Iterations = 1
+  Output Intervals = 1
+  Timestepping Method = BDF
+  Simulation Timing = True
+  BDF Order = 1
+  Solver Input File = case.sif
+  Post File = case.vtu
+  Output File = case.result
+End
+
+Constants
+  Stefan Boltzmann = 5.6704e-08
+  Permittivity of Vacuum = 8.8541878128e-12
+  Gravity(4) = 0 -1 0 9.80665
+  Boltzmann Constant = 1.380649e-23
+  Unit Charge = 1.602176634e-19
+End
+
+! airEqn
+Equation 1
+  Active Solvers(1) = 1 ! Static_Current_Conduction, Magneto_Dynamics, Magneto_Dynamics_Calculations, 
+End
+
+! Static_Current_Conduction
+Solver 1
+  Equation = Electrostatics
+  Procedure = "StatElecSolve" "StatElecSolver"
+  Variable = Potential
+  Calculate Electric Field = True
+  Calculate Electric Energy = True
+  Exec Solver = Always
+  Stabilize = True
+  Bubbles = False
+  Lumped Mass Matrix = False
+  Optimize Bandwidth = True
+  Steady State Convergence Tolerance = 1e-05
+  Nonlinear System Convergence Tolerance = 1e-07
+  Nonlinear System Max Iterations = 20
+  Nonlinear System Newton After Iterations = 3
+  Nonlinear System Newton After Tolerance = 0.001
+  Nonlinear System Relaxation Factor = 1
+  Linear System Solver = Iterative
+  Linear System Iterative Method = BiCGStab
+  Linear System Max Iterations = 500
+  Linear System Convergence Tolerance = 1e-10
+  BiCGstabl polynomial degree = 2
+  Linear System Preconditioning = ILU0
+  Linear System ILUT Tolerance = 0.001
+  Linear System Abort Not Converged = False
+  Linear System Residual Output = 10
+  Linear System Precondition Recompute = 1
+End
+
+
+! air
+Material 1
+  Density = 1.1885
+  Electric Conductivity = 0.0
+  Heat Capacity = 1006.4
+  Heat Conductivity = 0.025873
+  Relative Permeability = 1
+  Relative Permittivity = 1
+End
+
+! ro4003c
+Material 2
+  Density = 1790
+  Electric Conductivity = 0.0
+  Relative Permeability = 1
+  Relative Permittivity = 3.55
+End
+
+! copper
+Material 3
+  Density = 8960.0
+  Electric Conductivity = 59600000
+  Emissivity = 0.012
+  Heat Capacity = 415.0
+  Heat Conductivity = 401.0
+  Relative Permeability = 1
+End
+
+! trace
+Body 1
+  Target Bodies(1) = 3
+  Material = 3  ! copper
+  Body Force = 1  ! electric_potential
+End
+
+! substrate
+Body 2
+  Target Bodies(1) = 1
+  Equation = 1  ! airEqn
+  Material = 2  ! ro4003c
+End
+
+! airbox
+Body 3
+  Target Bodies(1) = 2
+  Equation = 1  ! airEqn
+  Material = 1  ! air
+End
+
+! interface_top
+Body 4
+  Target Bodies(1) = 4
+  Material = 3  ! copper
+End
+
+! interface_bottom
+Body 5
+  Target Bodies(1) = 5
+  Material = 3  ! copper
+End
+
+
+! FarField
+Boundary Condition 1
+  Target Boundaries(1) = 6
+  Electric Infinity BC = True
+End
+
+! Vplus
+Boundary Condition 2
+  Target Boundaries(1) = 4
+  Potential = 1.0
+  Save Scalars = True
+End
+
+! Vminus
+Boundary Condition 3
+  Target Boundaries(1) = 5
+  Potential = 0.0
+End
+
+
+! electric_potential
+Body Force 1
+  Electric Potential = Equals "Potential"
+End
+
+
+