Extracting the Excitation Coil Lumped Parameters

In simulations that use either the Finite Element Magnetic Vector Potential model or the Transverse Magnetic Potential model, Simcenter STAR-CCM+ allows you to extract the lumped parameters (that is, resistance and inductance) of the excitation coil region. These parameters can be used to calculate the magnetic inductance of the coil region or to couple an excitation coil region with an excitation coil circuit element.

To extract the lumped parameters of an excitation coil region:
  1. Activate the Excitation Coil Lumped Parameter model in the physics continuum associated with the coil region.
    For more information on the model requirements, see Excitation Coil Lumped Parameter Model Reference.
  2. Optionally, connect the excitation coil to an electric circuit.
    For information and instructions, see Coupling Coil Regions with Coil Circuit Elements.

The Excitation Coil Lumped Parameter model provides reports for the coil magnetic inductance, magnetic flux linkage, and, for simulations with motion, the voltage that is induced in the coil by motion (see Reports).

To create these reports:

  1. Right-click the Reports node, select New Report and choose the report of interest.
    Alternatively, if the coil region is associated with a coil circuit element, you can create all reports directly from the circuit element node (see Coupling Coil Regions with Coil Circuit Elements).
To specify the coil for which the report is evaluated:
  1. Select the Reports > [Report] node and select the relevant coil using the Parts property. You can either select coil regions or the associated coil circuit elements.
    When you select coil circuit elements, Simcenter STAR-CCM+ takes into account the circuit element Periodicity Factor. For more information, see Reports.
The Magnetic Inductance report calculates either the self-inductance of an excitation coil, or the mutual inductance between different coils. To set up this type of report:
  1. Select the Reports > [Magnetic Inductance] node:
    • To calculate the self-inductance:
      1. Leave the Parts Mutual property blank.
      2. Set the Parts property to the relevant coil regions or coil circuit elements. If you select multiple coils, Simcenter STAR-CCM+ calculates the effective self-inductance of the specified group of coils.
    • To calculate the mutual inductance between coils:
      • Set both the Parts Mutual and Parts properties.

        Simcenter STAR-CCM+ calculates the mutual inductance between the coil (or group of coils) selected under Parts, and the coil (or group of coils) selected under Parts Mutual.

    For more information on the available reports and their requirements, see Reports.