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Tutorials
Tutorials show you how to use Simcenter STAR-CCM+ for various applications in a step-by-step format with recommendations for setup, initialization and steps of the solution process specific to the application. Macro and simulation files are available for download for a large proportion of cases.
Electromagnetism
The following tutorials illustrate features for solving problems that involve electromagnetic fields.
Magnetohydrodynamics: Stirring Induced by Excitation Coils
In this tutorial, you simulate the electromagnetic stirring of molten metal induced by excitation coils.

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Tutorials
Tutorials show you how to use Simcenter STAR-CCM+ for various applications in a step-by-step format with recommendations for setup, initialization and steps of the solution process specific to the application. Macro and simulation files are available for download for a large proportion of cases.
- Using Tutorial Macros and Files
  Macros, input files, and final simulation files for a range of tutorials are provided as an optional download package on the Support Center website. These macros and final simulation files are provided as an aid to the written tutorials, so that you can check your final results against the downloaded files, or against a simulation that is built and run using the macros.
- Introduction
  Welcome to the Simcenter STAR-CCM+ introductory tutorial. In this tutorial, you explore the important concepts and workflow. Complete this tutorial before attempting any others.
- Foundation Tutorials
  The foundation tutorials showcase the major features of Simcenter STAR-CCM+ in a series of short tutorials.
- Geometry
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for creating and working with parts and 3D-CAD.
- Mesh
  The tutorials in this set illustrate various STAR-CCM+ features for building CFD meshes.
- Incompressible Flow
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for incompressible fluid flows as well as porosity and solution recording
- Compressible Flow
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for compressible fluid flows as well as harmonic balance.
- Heat Transfer and Radiation
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for heat transfer, radiation, and thermal comfort.
- Multiphase Flow
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for simulating multiphase fluid flow problems
- Discrete Element Method
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for simulating Discrete Element Method problems
- Motion
  The tutorials in this set illustrate various STAR-CCM+ features for simulating problems with moving geometries and meshes, dynamic fluid body interaction, and rigid body motion:
- Reacting Flow
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for simulating reacting flows such as combustion.
- Solid Stress
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for computing deformation, strain, and stresses in solid regions. They also show how such computations can be coupled to the fluid behavior in an analysis of fluid-structure interaction.
- Aeroacoustics
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for solving aeroacoustic simulations.
- Electromagnetism
  The following tutorials illustrate features for solving problems that involve electromagnetic fields.
  - Ohmic Heating: Domestic Fuse
    This tutorial demonstrates some of the capabilities of the Ohmic Heating model available in Simcenter STAR-CCM+.
  - Magnetic Vector Potential: Axial Flux Motor
    This tutorial demonstrates how to use the Finite Element Magnetic Potential Vector model to solve for the magnetic flux produced by the magnets of an axial-flux motor.
  - Magnetohydrodynamics: Stirring Induced by Excitation Coils
    In this tutorial, you simulate the electromagnetic stirring of molten metal induced by excitation coils.
    - Loading the Initial Simulation
      For this tutorial, you are provided with a starting simulation that includes an axisymmetric mesh representing the coils, the ladle, and the vacuum chamber.
    - Defining the Excitation Coils
      In this tutorial, you model the five excitation coils as a single solid region with five coil turns.
    - Defining the Molten Metal
      In this tutorial, you model the molten metal as a fluid with high electrical conductivity in the laminar regime.
    - Defining the Environment
      As you are only interested in the magnetic potential solution, you model the vacuum chamber as a solid. Modeling a vacuum as a fluid would require solving the equations of flow, which is not necessary in this case.
    - Preparing Post-Processing Objects
      Create scalar and vector scenes to monitor the Lorentz force, the magnetic flux density, and the velocity of the fluid during the simulation run.
    - Running the Simulation
      To improve stability, increase the under-relaxation factor for the magnetic potential solver, then run the simulation.
    - Visualizing the Results
      You can visualize the magnetic flux density distribution, the Lorentz force, and the fluid velocity in the scalar scenes that you created in the previous section.
    - Summary
      This tutorial demonstrated how to model electromagnetic stirring induced by excitation coils.
  - Airgap Remeshing: Electronic Speedometer
    Electric machine simulations require a conformal mesh at the interfaces between different components. Airgap remeshing is a meshing technique that allows you to generate and maintain conformal meshes between regions that are in relative motion.
  - Higher Order Magnetic Vector Potential: Axial Flux Motor
    Axial flux motors have, over recent years, become increasingly more popular for aerospace and automotive applications. One of the main advantages of axial flux motors is their high power density, which allows for high efficiency in compact designs.
  - Electric Circuits: Full-Wave Rectifier
    In power electronics, a full-wave rectifier provides rectification from an AC (Alternating Current) wave to a DC supply. Simcenter STAR-CCM+ provides simulation capabilities that allow you to investigate the effect of circuit component choices on the electromagnetic performance of such devices.
- Electrochemistry
  The following tutorial demonstrates chemical reactions induced by an electrical current.
- Battery
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for setting up a battery model:
- Automation
  The tutorials in this set illustrate various Simcenter STAR-CCM+ automation and macro features.
- Design Exploration
  The tutorials in this set illustrate various features for running design exploration studies in Design Manager.
- Coupling with CAE Codes
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for coupling with CAE codes:
- Analysis Methods
  The tutorials in this set illustrate various Simcenter STAR-CCM+ features for analysing and visualizing simulation data.
- Simcenter STAR-CCM+ In-cylinder
  The tutorials in this set illustrate features for simulating internal combustion engines in Simcenter STAR-CCM+ using the dedicated add-on Simcenter STAR-CCM+ In-cylinder.

Magnetohydrodynamics: Stirring Induced by Excitation Coils

In this tutorial, you simulate the electromagnetic stirring of molten metal induced by excitation coils.

The molten metal is contained within a cylindrical ladle that is surrounded by excitation coils. The electric current flowing through the coils induces a force (the Lorentz force) that acts on the electrically conducting fluid, stirring the metal. The ladle and coils are contained within a vacuum chamber.

As the problem has cylindrical symmetry, the 3D geometry is converted to a 2D mesh and the problem is solved in the axisymmetric space.

As the electric current in the coils is sinusoidal, it is convenient to perform the electromagnetic analysis using the Harmonic Balance FV Transverse Magnetic Potential model.

Analysis Overview


Geometry and Mesh	2D Axisymmetric
Physics and Assumptions	Excitation Coils: 5 coils modeled as a single region, in contact with the environment sinusoidal electric current, with peak current of 200 A, and frequency of 50 Hz eddy currents are neglected Liquid Metal: electrically conducting fluid in contact with the environment laminar regime eddy currents are included Environment: vacuum eddy currents are neglected outer boundary is assumed to be a perfect electric conductor (PEC)

Prerequisites

To complete this tutorial, you require a double-precision version of Simcenter STAR-CCM+ and a starting simulation file, which is provided in the tutorial files bundle.

If you have not already done so, download the tutorial files bundle. See Downloading the Tutorial Files from the Support Center Portal.

Also, the instructions in this tutorial assume that you are familiar with the following techniques:


Techniques	Tutorial
The Simcenter STAR-CCM+ workflow	Introduction to STAR-CCM+
Using visualization tools, scenes, and plots	Introduction to STAR-CCM+