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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.
Incompressible Flow
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for incompressible fluid flows as well as porosity and solution recording
Anisotropic Flow: Cyclone Separator
The flow inside a cyclone separator is characterised by strong swirling motion and three-dimensional boundary layers. Properly accounting for these effects is a challenging problem for CFD simulations. This tutorial presents the initial step in setting up a coarse mesh cyclone flow simulation.
Creating the Fluid Region
To use 3D-CAD geometry in a simulation, you first convert the model to geometry parts, and then assign these parts to regions. After creating the regions, you define boundary types on flow boundaries.

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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
  - Steady Flow: Lid-Driven Cavity Flow
    This tutorial demonstrates the performance of Simcenter STAR-CCM+ in solving a traditional square lid-driven cavity flow. The problem geometry consists of a two-dimensional 1 m² cavity. The cavity is covered by an impermeable wall that moves in the x-direction with constant velocity of 1 m/s. A stretched quadrilateral mesh with 6400 cells is used.
  - Steady Flow: Channel Flow with Multiple Meshes
    This tutorial describes a steady airflow simulation over an obstacle that is mounted at the bottom wall of a three-dimensional channel.
  - Steady Flow: Laminar and Turbulent Flow in an S-Bend
    This tutorial demonstrates the flow of an incompressible gas through an s-bend of constant diameter (2 cm), for both laminar and turbulent flow. The first part of the tutorial covers the laminar flow, with a Reynolds number (Re) of 500, and the second part covers the turbulent flow, Re = 50,000. The same pipe geometry is used in both cases.
  - Steady Flow: Backward Facing Step
    Steady flow over a backward facing step is a typical scenario to investigate the behaviour of reattaching flows. Understanding the behaviour of the flow is crucial for many applications such as designing heat exhangers, evalutating aerodynamic performance and improving flow control strategies.
  - Anisotropic Flow: Cyclone Separator
    The flow inside a cyclone separator is characterised by strong swirling motion and three-dimensional boundary layers. Properly accounting for these effects is a challenging problem for CFD simulations. This tutorial presents the initial step in setting up a coarse mesh cyclone flow simulation.
    - Loading an Existing Simulation
      For this tutorial, you use an existing simulation file from the 3D-CAD: Cyclone Separator tutorial. This file contains the geometry for the cyclone.
    - Creating the Fluid Region
      To use 3D-CAD geometry in a simulation, you first convert the model to geometry parts, and then assign these parts to regions. After creating the regions, you define boundary types on flow boundaries.
    - Generating the Volume Mesh
      After assigning parts to regions, you can define the mesh settings for the simulation to generate a polyhedral volume mesh. For this simulation, the polyhedral mesher is used in conjunction with the advancing layer mesher to build a mesh suitable for predicting the swirling flow inside the cyclone.
    - Selecting Physics Models
      Physics models define the physical variables and phenomena in the simulation. In this tutorial, the K-Omega turbulence model is used to limit the simulation run time.
    - Setting Boundary Conditions
      For this simulation, a uniform inlet velocity profile with specified turbulence intensity is sufficient.
    - Preparing a Scalar Scene
      Use a scalar scene to visualize the velocity on a section through the cyclone chamber.
    - Running the Steady Simulation
      Before running the simulation, you define the stopping criteria. You are advised to run this tutorial on a multi-core machine with four cores.
    - Running Unsteady with Curvature Correction
      The accuracy of the simulation is improved by activating the curvature correction term of the k-omega turbulence model. However, this improved accuracy means that an unsteady solution must be adopted in order to achieve adequate convergence.
    - Creating a Streamlines Scene
      Create a scene to display the streamlines inside the cyclone separator.
  - Porous Resistance: Isotropic Media
    This tutorial models flow through a catalyst geometry.
  - Porous Resistance: Orthotropic Media
    This tutorial solves the same problem as the Porous Resistance: Isotropic Media, except that the fluid in the porous region cannot flow in any direction other than the bulk flow (y-) direction.
  - Solution Recording and Playback: Vortex Shedding
    This tutorial demonstrates how to use the solution recording and playback module for capturing the results of transient phenomena.
  - Generalized Newtonian Fluid: Flow in a Static Mixer
    This tutorial demonstrates the process of setting up and analyzing the flow of a viscous fluid through a static mixer.
  - Viscoelastic Flow: Basic Extrusion
    This tutorial illustrates the extrusion of molten rubber through a die.
  - Material Calibration: Curve Fitting Non-Newtonian Model Parameters
    This tutorial illustrates the workflow for calibrating rheological model parameters from experimental rheological data through curve-fitting.
  - Polymer Melt Extrusion: Film Casting
    In industry, film casting is a common process for producing thin polymeric films. Cast films are used for applications such as food and textile packaging, stretch wraps, or plastic bags. Simcenter STAR-CCM+ provides a combination of the Film Casting model and the Free Surface model that allows you to simulate that process and to investigate the impact of various parameters on the resulting film.
- 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 Region

To use 3D-CAD geometry in a simulation, you first convert the model to geometry parts, and then assign these parts to regions. After creating the regions, you define boundary types on flow boundaries.

To use the 3D-CAD model in a simulation, create a geometry part:

Right-click the Geometry > 3D-CAD Models > Cyclone node and select New Geometry Part.
In the Parts Creation Options dialog, click OK to close the dialog. The default settings are acceptable.

All the bodies that are combined within the model are shown under the Geometry > Parts manager node.

To define the computational domain, assign the parts to regions. In this tutorial, there are two regions, one for each part.

Expand the Geometry > Parts node and multi-select the Main Body and Outlet Pipe nodes.
Right-click on one of the selections and choose Assign Parts to Regions....
In the Assign Parts to Regions dialog, select:
1. Create a Region for Each Part
2. Create a Boundary for Each Part Surface
Click Apply then Close.
Two regions are created with boundaries that define the inlet, outlet, and interfaces between the two regions.
To view the regions, create a geometry scene.

Before generating the volume mesh, one of the best practices is to set the boundary types for flow boundaries. By default, the prism layer mesher does not create prism layer cells across the surface of flow boundaries. Prism layer cells are generally only necessary on wall boundaries.

To set the boundary types:
1. Select the Regions > Main Body > Boundaries > Inlet node and set Type to Velocity Inlet.
  In the Graphics window, the surface that corresponds to this boundary changes to a red color.
2. Select the Regions > Outlet Pipe > Boundaries > Outlet node and set Type to Outlet.
  In the Graphics window, the surface that corresponds to this boundary changes to a green color.

To define the interfacing sides of the outlet pipe as a baffle:

In the simulation tree, expand the Interfaces node.
Select the Main Body/Outlet Pipe 2 node and set Type to Baffle Interface.
Save the simulation.