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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.
Automation
The tutorials in this set illustrate various Simcenter STAR-CCM+ automation and macro features.
Simulation Templates: HVAC Duct
In Simcenter STAR-CCM+, simulation templates define a starting point for simulations with similar physics. A simulation template can include a variety of predefined objects, such as predefined simulation operations, mesh operations, tags, filters, and parameters. Using a simulation template helps to automate and speed up the simulation preparation process.
Importing the CAD as Individual Parts
In this part of the tutorial, you adjust the simulation template to work with a HVAC duct that has not been prepared as a water-tight geometry.
Import the Parts and Assign Tags
You import all the part files that make up the HVAC duct geometry and assign the appropriate tags to the parts and surfaces.

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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.
- 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.
  - Simulation Assistant: Internal Flow Assistant
    The Simulation Assistant provides you with an API framework that allows you to create workflows.
  - Simple Java Macros: Post-Processing Objects
    This tutorial is intended to demonstrate the steps required in recording, editing, and replaying a Java macro in Simcenter STAR-CCM+.
  - Intermediate Java Macros: Run Multiple Simulations
    This tutorial simulates a train in a cross-wind, to calculate the drag coefficient on the train for different angles of attack.
  - Simulation Templates: HVAC Duct
    In Simcenter STAR-CCM+, simulation templates define a starting point for simulations with similar physics. A simulation template can include a variety of predefined objects, such as predefined simulation operations, mesh operations, tags, filters, and parameters. Using a simulation template helps to automate and speed up the simulation preparation process.
    - Ideal United Duct Geometry
    - Importing the CAD as Individual Parts
      In this part of the tutorial, you adjust the simulation template to work with a HVAC duct that has not been prepared as a water-tight geometry.
      - Creating the Surface Wrapper Operation
        Using the previous template, the mesh operations require a single part with the part_duct tag to produce the duct mesh. However, you may wish to import the mesh as multiple parts. To prepare the geometry for meshing and obtain a single duct part, you create a surface wrapper operation.
      - Creating the Wrapper Controls
        To capture the input HVAC duct geometry accurately, you define contact prevention controls on the surface wrapper operation. Contact prevention controls inform the wrapper that two faces should not touch at a point unless the distance between the faces is less than a specified minimum size. Without this control, the mesh can become coarse at the interesection between surfaces on the vanes or between the vanes and duct interior.
      - Import the Parts and Assign Tags
        You import all the part files that make up the HVAC duct geometry and assign the appropriate tags to the parts and surfaces.
    - Using Parameterized Coordinate Systems
      As is common within industry, you may be required to test multiple geometries for a similar application so you can compare the designs.
- 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.

Import the Parts and Assign Tags

You import all the part files that make up the HVAC duct geometry and assign the appropriate tags to the parts and surfaces.

To save the file as a new simulation template:

Select File and click Save to Template.
In the Save dialog, navigate to your working directory and save the file as wrappedHVACduct_template.simt.

To import the geometry parts:

Select File and click Import > Import Surface Mesh....
In the Open dialog, navigate to your working directory, multi-select all the .dbs files contained within the WrapperInput folder and click Open.
In the Import Surface Options dialog, disable the Open Geometry Scene After Import option and click OK.
All the imported geometry parts are added to the Geometry > Parts node.
Create a composite part that contains all the imported geometries:
1. Multi-select all the imported parts (Adjuster, Clip, Duct, Flap, Patches, and Vanes).
2. Right-click one of the selected parts and select Composite.
3. Rename the Composite part to Duct Geometry.
Multi-select all the parts under the Duct Geometry composite and set Tags to Part_WrapperInputs.
Expand the Surfaces node under each part contained in the Duct Geometry composite.
Multi-select the Surfaces > Faces nodes of the Adjuster, Clip, Flap, Patches, and Vanes parts and set Tags to Surface_DuctVanes.

Expand the Duct > Surfaces part node and set Tags as follows:


Node	Tags
External	Surface_DuctExterior
Internal	Surface_DuctInterior

After assigning the tags to the parts and surfaces, you can execute the mesh operations:

Right-click the Operations node and select Execute All.
To visualize the volume mesh, open the 05_VolumeMeshDuct.
You can observe that the methods explored in the first and second parts of this tutorial result in slightly different meshes. This is particulary evident at the regions where surfaces interact: partly because of the surface wrapper; partly because of the tolerance gaps present in the second duct geometry.
For an example, you can compare the volume mesh scenes of the central vane and the clip at the vent:
unifiedHVACduct - 05_volumeMeshDuct:

wrappedHVACduct - 05_volumeMeshDuct: