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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.
Heat Transfer and Radiation
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for heat transfer, radiation, and thermal comfort.
Surface-to-Surface Radiation: Thermal Insulator
This tutorial incorporates gray thermal radiation in a Simcenter STAR-CCM+ simulation.
Setting Solver Parameters and Stopping Criteria
Adjust solver controls such as the under-relaxation factors and the maximum number of iterations.

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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.
  - Conjugate Heat Transfer: Heated Fin Introduction
    This tutorial incorporates both multi-region conjugate heat transfer and natural convection in a Simcenter STAR-CCM+ simulation.
  - Simulation Operations: Multi-Timescale Conjugate Heat Transfer
    Through simulation operations, Simcenter STAR-CCM+ provides an automated methodology by which you can include a multiple time-scale workflow in a single simulation.
  - Simulation Operations: Transient-transient Multi-Timescale Conjugate Heat Transfer
    An important analysis for automotive applications is to simulate the thermal behavior of components during cold-start conditions. As the timescales involved in fluctuating fluid behavior often varies significantly from the timescales in solid thermal behavior, it is not efficient to run an implicitly coupled conjugate heat transfer simulation. Simcenter STAR-CCM+ provides a coupling strategy that permits distinct transient timescales for the solid and fluid components.
  - Multi-Part Solid: Graphics Card Cooling
    This tutorial demonstrates how you can model multiple solid parts in a single continuum using the Multi-Part Solid physics model.
  - Natural Convection: Concentric Cylinders Introduction
    This tutorial demonstrates how to solve a natural convection problem in Simcenter STAR-CCM+.
  - Electronics Cooling Toolset: Natural Convection JEDEC
    Although many electronic devices benefit from cooling fans in removing excess heat, some devices rely on natural convection only. The Electronics Cooling Toolset includes a method for estimating cooling due to natural convection.
  - Electronics Cooling Toolset: Graphics Card Cooling
    When you are positioning fans that cool electronic components, the Electronics Cooling Toolset allows you to assess the impact that they have on removing heat. By comparing multiple designs, you can decide which arrangement gives you the best performance.
  - Dual Stream Heat Exchanger: Car Radiator
    Heat exchangers are devices that efficiently transfer heat from one medium to another. Some prominent examples of heat exchanger applications include car radiators, such as the one used in this tutorial, power plants and air-conditioning.
  - Surface-to-Surface Radiation: Thermal Insulator
    This tutorial incorporates gray thermal radiation in a Simcenter STAR-CCM+ simulation.
    - Prerequisites
      The instructions in the Surface-to-Surface Radiation tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Importing the Mesh and Naming the Simulation
      To set up the Simcenter STAR-CCM+ simulation, launch a simulation and import the supplied volume mesh.
    - Splitting the Boundary
      One of the solid boundaries must be split into non-contiguous boundaries.
    - Renaming Regions and Boundaries
      The simulation currently has the default region and boundary names. Choose more meaningful names.
    - Creating Interfaces
      Simcenter STAR-CCM+ requires the existence of interfaces between different regions to transfer the appropriate physical quantities during the calculation.
    - Setting Up the Models
      Models define the primary variables of the simulation, including pressure, temperature, velocity, and what mathematical formulation is used to generate the solution. In this example, the flow is laminar and incompressible.
    - Setting Material Properties
      You change the default material for the solid continuum to glass.
    - Specifying Surface Materials and Radiation Properties
      You specify the radiation properties—emissivity, reflectivity, and transmissivity—at the boundaries and interfaces in this simulation. You do this by creating and defining a surface material for each boundary and interface.
    - Setting Boundary Conditions and Values
      The thermal insulator consists of a closed heated box with two internal solid glass panels that are surrounded by air. The boundary specifications that are required for this analysis are wall thermal conditions and radiation properties at the boundaries.
    - Setting Solver Parameters and Stopping Criteria
      Adjust solver controls such as the under-relaxation factors and the maximum number of iterations.
    - Visualizing the Solution
      View the temperature of the fluid and solid regions as the solution develops.
    - Reporting and Monitoring with Plots
      In this case, a report and plot are used for monitoring the irradiation at one of the interfaces between the glass panels and surrounding air.
    - Initializing and Running the Simulation
      To verify that the initial conditions for the regions are correct before you run the simulation, Simcenter STAR-CCM+ allows you simply to perform solver initialization and then view the results using an appropriate scene.
    - Visualizing the Results
      To examine irradiation, temperature, and other results from the converged solution, look at the plots and the scene.
    - Summary
      The Surface-to-Surface Radiation tutorial used two glass plates and air within a rectangular enclosure to introduce a variety of Simcenter STAR-CCM+ features.
  - Multiband Surface-to-Surface Radiation: Solar Collector
    This tutorial uses the simulation created for the Surface-to-Surface Radiation: Thermal Insulator.
  - Photon Monte Carlo Radiation: Headlamp
    Thermal management simulations of headlamp applications allow you to identify temperature hotspots that can cause damage to the headlamp. Modifying the design—for example, including heat shields in the right places—leads to better and more durable designs.
  - Thermal Comfort: Car Cabin
    Comfort is one of the main factors that consumers consider when deciding how they travel. Therefore, passenger comfort is one of the key criteria that influence the design process of enclosed spaces such as a car or aircraft cabin.
  - Parts-Based Shells: Exhaust Pipe
    Simcenter STAR-CCM+ provides support for thin-walled structures that are best represented by a single-cell layer during simulation. These single-cell layers are known as shells. One of the main advantages of using shell elements is that it reduces the computational time and resources required for simulations.
- 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 Solver Parameters and Stopping Criteria

Adjust solver controls such as the under-relaxation factors and the maximum number of iterations.

Since you are only solving for temperature in this tutorial, the flow is frozen. In most situations, the Freeze Flow feature is primarily a “debugging” tool and not supported for normal simulation work.

Select the Solvers > Segregated Flow node and activate Freeze Flow.

To assist solution convergence, select the Solvers > Segregated Energy node and set the under-relaxation factors for fluid and solid segregated energy as follows:


Property	Setting
Fluid Under-Relaxation Factor	0.55
Solid Under-Relaxation Factor	0.99

The default stopping criterion is set to end the calculation after 1000 iterations. Such a value is excessive, so reduce the maximum number of iterations.

Select the Stopping Criteria > Maximum Steps node and set Maximum Steps to 500.

Create a stopping criterion that is based on the energy equation residual. Set the minimum tolerance to 1E-6.

Right-click the Stopping Criteria node and select New Monitor Criterion..., then select Energy in the Select Monitor dialog.
Select Stopping Criteria > Energy Criterion > Minimum Limit node and set Minimum Value to 1.0E-6
Save the simulation.