How Do I Set a Charge Simulation?

Date	Category
2025-06-30 21:10:35	Charge

The steps to set up a Charge simulation are very similar to those for an FDTD simulation:

• Create the geometry
  The Scene object hosts the simulation geometry and enables easy integration with multiphysics.

• Assign materials
  Materials can be defined using SolidMedium, which requires specifying heat capacity and thermal conductivity, or FluidSpec, which represents a non-simulated fluid.

• Assign boundary conditions
  These can be:

  • VoltageBC

  • CurrentBC

  • InsulatingBC

• Add a source
  A DC voltage source can be added to the VoltageBC using a DCVoltageSource object.
  Similarly, a DCCurrentSource can be added to the CurrentBC boundary to define a current source.

• Define meshing specifications
  The simplest option is to use the UniformUnstructuredGrid mesh type, where you only need to specify the grid size dl. The mesher will automatically generate a mesh that fits the structures while respecting the given resolution.

• Define the simulation type
  Define the simulation type via the analysis_spec of the HeatChargeSimulation object. Currently, only IsothermalSteadyChargeDCAnalysis is supported.

• Create the simulation object
  Create a HeatChargeSimulation object.

• Run the simulation
  Use Web.run, just like with an FDTD simulation.

For a full walkthrough of this process, check out the HeatSolver example notebook.