More Elmer WIP

Simulation Plots.ipynb

@@ -836,7 +836,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.11.5"
+   "version": "3.12.5"
   }
  },
  "nbformat": 4,

coil_mag_solvers.yml

@@ -2,18 +2,18 @@ Coil_Solver:
   Equation: CoilSolver
   Procedure: '"CoilSolver" "CoilSolver"'
   Linear System Solver: Iterative
-  Linear System Preconditioning: ILU1
-  Linear System Max Iterations: 1000
-  Linear System Convergence Tolerance: 1e-10
+  Linear System Preconditioning: ILU3
+  Linear System Max Iterations: 25000
+  Linear System Convergence Tolerance: 1e-6
   Linear System Iterative Method: BiCGStab
-  Linear System Residual Output: 10
+  Linear System Residual Output: 1
   Steady State Convergence Tolerance: 1e-06
   Normalize Coil Current: True
   Nonlinear System Consistent Norm: True
-  Coil Closed: True
-  Narrow Interface: True
-  Save Coil Set: True
-  Save Coil Index: True
+  Coil Closed: False
+  Narrow Interface: 'Logical True'
+  Save Coil Set: 'Logical True'
+  Save Coil Index: 'Logical True'
   Calculate Elemental Fields: True
 
 Static_Current_Conduction:

coil_parasitics.py

@@ -208,13 +208,14 @@ def inductance(mesh_file, sim_dir, solver_method):
     fr4 = elmer.load_material('fr4', sim, 'coil_mag_materials.yml')
     copper = elmer.load_material('copper', sim, 'coil_mag_materials.yml')
 
-    solver_coil = elmer.load_solver('Coil_Solver', sim, 'coil_mag_solvers.yml')
+    #solver_coil = elmer.load_solver('Coil_Solver', sim, 'coil_mag_solvers.yml')
     solver_magdyn = elmer.load_solver('Magneto_Dynamics', sim, 'coil_mag_solvers.yml')
+    solver_current = elmer.load_solver('Static_Current_Conduction', 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_coil, solver_magdyn, solver_magdyn_calc])
+    copper_eqn = elmer.Equation(sim, 'copperEqn', [solver_current, solver_magdyn, solver_magdyn_calc])
     air_eqn = elmer.Equation(sim, 'airEqn', [solver_magdyn, solver_magdyn_calc])
 
     bdy_trace = elmer.Body(sim, 'trace', [physical['trace'][1]])
@@ -240,17 +241,29 @@ def inductance(mesh_file, sim_dir, solver_method):
     comp_coil = elmer.Component(sim, 'Coil', [bdy_trace])
     comp_coil.data['Desired Current Density'] = 'Real 1.0'
 
-    current_force = elmer.BodyForce(sim, 'Source', {
-        'Current Density 1': 'Equals "CoilCurrent e 1"',
-        'Current Density 2': 'Equals "CoilCurrent e 2"',
-        'Current Density 3': 'Equals "CoilCurrent e 3"',
-        })
-    bdy_trace.body_force = current_force
+    #current_force = elmer.BodyForce(sim, 'Source', {
+    #    'Current Density 1': 'Equals "CoilCurrent e 1"',
+    #    'Current Density 2': 'Equals "CoilCurrent e 2"',
+    #    'Current Density 3': 'Equals "CoilCurrent e 3"',
+    #    })
+    potential_force = elmer.BodyForce(sim, 'electric_potential', {'Electric Potential': 'Equals "Potential"'})
+    bdy_trace.body_force = potential_force
+    #bdy_trace.body_force = current_force
 
     # boundaries
     boundary_airbox = elmer.Boundary(sim, 'FarField', [physical['airbox_surface'][1]])
     boundary_airbox.data['Electric Infinity BC'] = 'True'
 
+    boundary_vplus = elmer.Boundary(sim, 'Vplus', [physical['interface_top'][1]])
+    #boundary_vplus.data['Coil Start'] = True
+    #boundary_vplus.data['A re {e}'] = 'Real 0'
+    boundary_vplus.data['Potential'] = 1.0
+    boundary_vplus.data['Save Scalars'] = True
+
+    boundary_vminus = elmer.Boundary(sim, 'Vminus', [physical['interface_bottom'][1]])
+    #boundary_vminus.data['Coil End'] = True
+    boundary_vminus.data['Potential'] = 0.0
+
     with tempfile.TemporaryDirectory() as tmpdir:
         tmpdir = sim_dir if sim_dir else Path(tmpdir)
 
@@ -291,7 +304,7 @@ def inductance(mesh_file, sim_dir, solver_method):
         assert math.isclose(V, 1.0, abs_tol=1e-3)
 
         print(f'Total magnetic field energy: {format_si(U_mag, "J")}')
-        print(f'Reference coil current: {format_si(I, "Ω")}')
+        print(f'Reference coil current: {format_si(I, "A")}')
         print(f'Coil resistance calculated by solver: {format_si(R, "Ω")}')
         print(f'Inductance calucated from field: {format_si(L, "H")}')
 

self_capacitance_sim.yml

@@ -0,0 +1,14 @@
+3D_steady:
+  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

self_capacitance_solvers.yml

@@ -0,0 +1,44 @@
+StaticCurrent:
+  Equation: Static Current Conduction
+  Variable: PotentialStat
+  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
+
+Electrostatics:
+  Equation: Electrostatics
+  Procedure: '"StatElecSolve" "StatElecSolver"'
+  Variable: Potential
+  Variable DOFs: 1
+  Calculate Electric Field: True
+  Calculate Electric Flux: 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: 5000
+  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
+  Potential Difference: 1.0
+