Home
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.
Mesh
The tutorials in this set illustrate various STAR-CCM+ features for building CFD meshes.
Parts-Based Meshing External Aerodynamics
This tutorial demonstrates how to set up a simulation using the parts-based meshing approach.
Creating the Fluid Volume
The fluid simulation requires a volume mesh between the surface of the car and the walls of the bounding box. To create the part that defines the outer surface of the volume mesh, you subtract the output of the surface wrapper operation from the bounding box.

Share

Link: copied

Breadcrumb: copied

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.
  - Surface Wrapper: Intake Manifold
    This tutorial demonstrates how to use the surface wrapper to extract the internal fluid surface from a collection of parts that represent an intake manifold assembly.
  - Surface Repair Tools Brake Assembly
    Simcenter STAR-CCM+ provides a suite of tools to help you prepare surface geometry so that it is ready for meshing. This tutorial provides an introduction to some of these tools, using the example of a brake assembly.
  - Parts-Based Meshing External Aerodynamics
    This tutorial demonstrates how to set up a simulation using the parts-based meshing approach.
    - Prerequisites
      The instructions in the Parts-Based Meshing External Aerodynamics tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Overview
      There are several stages within the Parts-Based Meshing External Aerodynamics tutorial.
    - Importing the Surface Mesh
      Launch a simulation and import the supplied surface mesh.
    - Storing the View
      Set up and store a convenient view of the geometry for use throughout the tutorial.
    - Preparing the Initial Surface
      In this stage of the tutorial, you remove the original wing from the car and import a new wing that is in a different position. These steps create several problems on the geometry surface, which you fix at later stages of the tutorial.
    - Filling a Hole on the Car Surface
      Use the fill hole mesh operation to fill the hole in the surface mesh that appeared when you removed the initial wing.
    - Creating a Composite Assembly
      One of the advantages of parts-based meshing is that you can perform mesh operations on an assembly of several parts. Here, you create an assembly to contain the parts that you are using in this tutorial.
    - Generating a Wrapped Surface Mesh
      At this stage you generate a surface wrap of the Vehicle Assembly to fix the pierced faces. You also set up curve controls and contact prevention to maintain important features on the surface mesh.
    - Creating the Fluid Volume
      The fluid simulation requires a volume mesh between the surface of the car and the walls of the bounding box. To create the part that defines the outer surface of the volume mesh, you subtract the output of the surface wrapper operation from the bounding box.
    - Assigning the Fluid Volume to a Region
      Before generating a volume mesh, you must assign the fluid volume to a region. This action allows the mesher to convert the volume mesh to a finite volume representation that the solvers can use.
    - Setting Boundary Types
      Certain boundary types affect the volume mesh. In this tutorial, you have a velocity inlet, pressure outlet, and symmetry boundaries that do not require prism layers. Simcenter STAR-CCM+ does not grow prism layers on these boundaries by default .
    - Generating the Volume Mesh
      Use an automated mesh operation to generate the volume mesh.
    - Replacing the Wing and Executing the Pipeline
      An advantage of parts-based meshing is that when you have defined the series of mesh operations, you can repeat them on different initial geometries.
    - Summary
      This tutorial demonstrated how to set up a simulation using Parts-Based Meshing.
  - Mesh Operations: Imported Control Valve
    This tutorial demonstrates how to use the surface and volume meshing operations within Simcenter STAR-CCM+ to generate a polyhedral volume mesh with prism layers for a single region. The inputs required to build a trimmed cell mesh with prism layers are also covered.
  - Meshing: Multi-Part Heat Exchanger
    This tutorial demonstrates how to use the surface and volume meshing tools while working with multiple parts within Simcenter STAR-CCM+.
  - Directed Meshing: Electrical Machine
    This tutorial demonstrates how to use the directed meshing tool in STAR-CCM+. Directed meshing allows you to generate a high-quality structured mesh by creating quadrilateral elements on a surface of a body and then sweeping them through its volume.
  - Local Wrapper: European Truck
    Local wrapping speeds up re-execution of the surface wrapper after local changes are made to the input geometry or wrapper settings.
  - Gap Closure in Surface Wrapper: Drone Main Body
    When using the surface wrapper for geometries that have feature-level holes or gaps, you can find that the core wrapper is unable to cover the whole surface with a closed wrap. To assist, Simcenter STAR-CCM+ provides a gap closure option that detects and fills these larger voids in the surface.
  - Turbomachinery Mesher: Compressor Stage
    When modelling the flow in turbomachinery applications, a flow-aligned structured mesh is required for accurate solution analysis. The Turbomachinery Mesh operation in Simcenter STAR-CCM+ generates a flow-aligned structured mesh from user-specified input surfaces and parameters.
- 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.
- 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.

Creating the Fluid Volume

The fluid simulation requires a volume mesh between the surface of the car and the walls of the bounding box. To create the part that defines the outer surface of the volume mesh, you subtract the output of the surface wrapper operation from the bounding box.

This tutorial uses the subtract operation instead of the extract volume operation. The reason for using the subtract operation is that the car tires (contained within the Surface Wrapper part) intersect the surface of the Bounding Box part. The extract volume operation cannot intersect surfaces; the subtract operation does.

To create the fluid volume:

Right-click the Geometry > Operations node and select New > Boolean > Subtract.

In the Create Subtract Operation dialog, set the following properties:


Property	Setting
Input Parts	Bounding Box
Input Parts	Surface Wrapper
Target Part	Bounding Box

Click OK.
A Subtract node appears beneath the Operations node, and a Subtract part appears beneath the Parts node.
Rename the Parts > Subtract node to Fluid Volume.
Right-click the Operations > Subtract node and select Execute.

To view the fluid volume:

In the Visualization toolbar, click Create/Open Scenes and select Mesh.

Edit the Mesh scene and set the following properties:


Node	Property	Setting
Scenes > Mesh Scene 1 > Mesh 1	Outline	Activated
Mesh 1 > Parts	Parts	De-select all parts and selectFluid Volume only.

In the Visualization toolbar, click (Save-Restore-Select views) and select Restore View > View 1.
Select the Mesh 1 > Parts > Fluid Volume.Bounding Box.Far Field node and deactivate the Visible option.
Save the simulation.
On the under-side of the Fluid Volume part, the subtract operation has intersected and removed the surface that represents the tire contact patch. The extract volume mesh operation is not capable of making these geometric changes to a surface.