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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.
Mesh
The tutorials in this set illustrate various STAR-CCM+ features for building CFD meshes.
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.
Refining the Wrap Around the Drone Body and Legs
Two separate surface controls are applied to the drone body and the legs respectively to improve the wrap around the geometry.

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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.
  - 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.
  - 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.
    - Importing the Geometry
      To set up the Simcenter STAR-CCM+ simulation, launch a simulation and import the geometry files provided.
    - Perform the Initial Wrap
      Perform an initial wrap with the gap closure option activated.
    - Assessing the Initial Wrap
      Review the initial wrap to identify any unexpected holes or deformed surfaces. You then re-wrap the geometry using the parallel gap closure to improve the wrap around the camera.
    - Refining the Wrap Around the Drone Body and Legs
      Two separate surface controls are applied to the drone body and the legs respectively to improve the wrap around the geometry.
  - 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.

Refining the Wrap Around the Drone Body and Legs

Two separate surface controls are applied to the drone body and the legs respectively to improve the wrap around the geometry.

To create the surface control for the drone body:

Right-click the Operations > Surface Wrapper > Custom Controls node and select New > Surface Control.
Rename Surface Control to Body Refinement.
Select the Body Refinement node and set Part Surfaces to Lower > Surfaces > Faces and Upper > Surfaces > Faces.

Edit the Body Refinement node and set the following properties:


Node	Property	Setting
Controls
Target Surface Size	Target Surface Size	Custom
Minimum Surface Size	Minimum Surface Size	Custom
Custom Gap Closure Size	Custom Gap Closure Size	Activated
Values
Target Surface Size	Size Type	Relative to base
Target Surface Size	Percentage of Base	50.0
Minimum Surface Size	Size Type	Relative to base
Minimum Surface Size	Percentage of Base	15.0
Custom Gap Closure Size	Size Type	Absolute
Custom Gap Closure Size	Absolute Size	10.0 mm

To create a surface control for the legs of the drone

Create a new custom surface control.
Rename Surface Control to Legs Refinement.
Select the Legs Refinement node and set Part Surfaces to Lower > Surfaces > Legs.

Edit the Legs Refinement node and set the following properties:


Node	Property	Setting
Controls
Target Surface Size	Target Surface Size	Custom
Values
Target Surface Size	Size Type	Relative to base
Target Surface Size	Percentage of Base	35.0

Execute the wrapper.
The following image shows the improved gap closure for the slots in the main body as well as the improved definition of the leg structure.
Save the simulation.