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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.
Compressible Flow
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for compressible fluid flows as well as harmonic balance.
Transonic Flow: RAE2822 Airfoil Using Overset Mesh
This tutorial demonstrates how to use an overset mesh to simulate transonic flow over the RAE2822 airfoil.
Preparing the Meshes
You create two Automated Mesh Operations to represent the Background and Overset regions.
Setting up the Overset Mesh
Now, you specify the mesh settings for the overset mesh.

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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.
  - Subsonic Flow: NACA-Type Intake
    This tutorial illustrates how to solve a three-dimensional compressible flow problem using Simcenter STAR-CCM+.
  - Transonic Flow: RAE2822 Airfoil
    The tutorial simulates two-dimensional, turbulent, compressible, transonic air flow over an idealized airfoil.
  - Transonic Flow: RAE2822 Airfoil Using Overset Mesh
    This tutorial demonstrates how to use an overset mesh to simulate transonic flow over the RAE2822 airfoil.
    - Importing the Geometry
      Load a simulation prepared with the geometry.
    - Working with Regions
      Create and define regions and boundaries for the domain.
    - Preparing the Meshes
      You create two Automated Mesh Operations to represent the Background and Overset regions.
      - Setting up the Background Mesh
        First, you specify the mesh settings and volumetric refinements for the background mesh.
      - Setting up the Overset Mesh
        Now, you specify the mesh settings for the overset mesh.
      - Generating the Mesh
        With both Automated Mesh Operations for the background mesh and the overset mesh set up, you generate the volume mesh. You then convert the mesh from 3D to 2D to simplify the solution.
    - Specifying Angle of Attack
      The steps presented here demonstrate how using overset meshes allows you to change the relative position of bodies without the need to generate a mesh.
    - Coupling the Overset Region
      Overset regions are coupled to the background region using the Overset Mesh interface.
    - Setting Up Physics Models
      Models define the spatial and temporal solution methods and the physical properties of the flow.
    - Setting Material Properties
      Set the Reynolds number to 6.5 x 10⁶ by changing the dynamic viscosity.
    - Setting Initial Conditions
      As in the Transonic Flow tutorial, initialize the velocity field to 252.0 m/s.
    - Setting Boundary Conditions
      Set the conditions at the boundaries of the airfoil and the domain.
    - Preparing a Scalar Scene
      View the Mach number profile during the run to monitor the supersonic flow region above the airfoil.
    - Monitoring Convergence
      To determine when the problem has converged, plot the lift and drag coefficients.
    - Running the Simulation
      You are now ready to run the simulation.
    - Visualizing the Results
      The Scalar Scene display shows the Mach number profile at the end of the run.
    - Changing Angle of Attack
      Rotate the overset mesh.
    - Clearing and Rerunning the Simulation
      Clear the solution and rerun the simulation using the same physics setup.
    - Visualizing the Results
      Re-examine the scalar scene.
    - Summary
      This Transonic Flow tutorial demonstrated how to use overset mesh to simulate transonic flow over an airfoil
  - Anisotropic Volume Meshing: Onera M6 Wing
    When meshing aerospace geometries such as wings, propeller blades, or turbine blades, you are required to generate a very fine mesh that adequately captures the curvature of the leading and trailing edges. To help reduce the cell count while maintaining solution accuracy, Simcenter STAR-CCM+ provides an anisotropic meshing option by which you can refine these edges.
  - Adaptive Mesh Refinement: Hypersonic Flow
    Hypersonic flows and flight envelopes present unique challenges in Computational Flow Dynamics. The extreme gradients and shocks can push flow solvers to their limits and resolving the flow features, particularly shock formation, is of paramount importance in obtaining valid converged solutions. In Simcenter STAR-CCM+, you can apply Adaptive Mesh Refinement (AMR) to accurately resolve developing shocks using refinement based on solution gradients.
  - Harmonic Balance: Single Stage Periodic Flow
    The tutorial illustrates the steps necessary to simulate a single axial compressor blade row so that the effect of a periodic wake can be analyzed using the Harmonic Balance method.
  - Gas Turbine Aerodynamics: Post-Processing
    In turbomachinery studies, the analysis of the flow field throughout the blade passage requires advanced post processing methods.
- 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.
- 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.

Setting up the Overset Mesh

Now, you specify the mesh settings for the overset mesh.

To set up the overset mesh:

Copy and paste the Background Mesh node onto the Operations node and rename the copy to Overset Mesh.
Select the Operations > Overset Mesh node and set Input Parts to Overset.
Select the Operations > Overset Mesh > Meshers > Prism Layer Mesher node and set Distribution Mode to Wall Thickness.

Edit the Operations > Overset Mesh > Default Controls > Prism Layer Controls node and set the following properties:


Node	Property	Setting
Prism Layer Controls	Number of Prism Layers	15
Prism Layer Controls	Prism Layer Near Wall Thickness	1.0E-4 m
Prism Layer Controls > Prism Layer Total Thickness	Percentage of Base	15.0

Rename the Operations > Overset Mesh > Custom Controls > Volumetric Control node to Overlap.
You can reuse the volumetric control that you created for the background mesh.
Following the same procedure as for the background mesh, create three additional new volumetric controls and give them the following names:
- Airfoil.
- Leading Edge.
- Trailing Edge.

In the Controls node of all four volumetric controls, set the following properties:


Node	Property	Setting
Surface Remesher	Customize Size	Activated
Trimmer	Customize isotropic size	Activated

For each volumetric control, select the following parts and the following values for Values > Custom Size:


Volumetric Control	Part	Percentage of Base
Overlap	Overlap	12.5
Airfoil	Airfoil	5.0
Leading Edge	Leading Edge	1.0
Trailing Edge	Trailing Edge	2.0