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.
Coupling with CAE Codes
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for coupling with CAE codes:
GT-SUITE Co-Simulation: 1D Coupling
This tutorial demonstrates the typical workflow for co-simulation with the engine simulation code GT-SUITE from Gamma Technologies.
Setting Up the Simcenter STAR-CCM+ Simulation
Prepare the intake manifold simulation in Simcenter STAR-CCM+ and modify it for co-simulation with GT-SUITE.
Setting the Time-Step
Set the time step to a value of 5.55556E-5 seconds, which in this case is a one degree crank angle rotation.

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.
- 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:
  - Simcenter STAR-CCM+ to Simcenter STAR-CCM+ Coupling: Heat Transfer in a Chimney
    This tutorial demonstrates the process for modeling conjugate heat transfer using Simcenter STAR-CCM+ to Simcenter STAR-CCM+ thermal co-simulation.
  - Simcenter Nastran Co-Simulation: Disc Valve
    To solve fluid-structure interaction problems, you can couple Simcenter STAR-CCM+ and Simcenter Nastran in a co-simulation analysis. Simcenter STAR-CCM+ computes the flow solution and Simcenter Nastran computes the structural analysis for the solid.
  - FMU Co-Simulation with Simcenter Amesim: Check Valve
    Simcenter STAR-CCM+ can exchange data with Simcenter Amesim through imported FMU models. An FMU is a time-dependent model written in the Functional Mock-up Interface (FMI) standard.
  - FMU Co-Simulation: Temperature Controller
    Simcenter STAR-CCM+ can exchange single-value data with imported FMU models. FMU models are time-dependent models that are written according to the Functional Mock-up Interface (FMI) standard.
  - Abaqus File-Based Coupling: Exhaust Manifold
    The purpose of this tutorial is to demonstrate the typical workflow in running a thermal fluid-structure interaction case using the file-based coupling method with Abaqus.
  - Abaqus Co-Simulation: Thermal Coupling
    This tutorial demonstrates how to run a thermal co-simulation case using Simcenter STAR-CCM+ and Abaqus. Co-simulation involves a strong coupling between the two codes, in which data exchange occurs at frequent intervals, that are known as coupling steps. In this case, data is exchanged at the end of each time-step, and a relatively large time-step is used to approximate a steady-state solution.
  - Abaqus Co-Simulation: Mechanical Coupling
    This tutorial demonstrates how to carry out a mechanical co-simulation case using Simcenter STAR-CCM+ and Abaqus. Co-simulation involves a strong coupling between the two codes. Data is exchanged at frequent intervals that are called coupling steps. This level of communication between the solvers allows you to obtain a full solution across the fluid-solid interface.
  - gPROMS File Export: Spray Dryer
    Simcenter STAR-CCM+ allows for one-way coupling with gPROMS, a process modeling platform for the simulation of complex systems. In Simcenter STAR-CCM+ you reduce three-dimensional solution data to discrete values defined for clusters of cells; data from these clusters can then be exported to a network in gPROMS.
  - GT-SUITE Co-Simulation: 1D Coupling
    This tutorial demonstrates the typical workflow for co-simulation with the engine simulation code GT-SUITE from Gamma Technologies.
    - Prerequisites
      The instructions in the GT-SUITE Co-Simulation - 1D Coupling tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Preparing the File Structure
      For this tutorial, you are provided with a starting GT-SUITE simulation file, containing the engine analysis, and the intake manifold Simcenter STAR-CCM+ volume mesh. Copy these files to your working directory.
    - Modifying the GT-SUITE Simulation for Co-Simulation
      After running a standalone GT-SUITE analysis to convergence, you modify the GT-SUITE simulation for coupling with Simcenter STAR-CCM+.
    - Setting Up the Simcenter STAR-CCM+ Simulation
      Prepare the intake manifold simulation in Simcenter STAR-CCM+ and modify it for co-simulation with GT-SUITE.
      - Importing the Volume Mesh
        To set up the Simcenter STAR-CCM+ simulation, launch a simulation and import the supplied volume mesh.
      - Selecting Physics Models
        Select the physics models that solve for the fluid in Simcenter STAR-CCM+. Also, activate a physics model that enables coupling between Simcenter STAR-CCM+ and GT-SUITE.
      - Importing the GT-SUITE Material Properties
        Create a material database and import the material properties from the GT-SUITE simulation.
      - Setting Up the Species Representation
        Define gas components and passive scalars under the relevant physics models.
      - Setting the Reference Pressure
        Set the reference pressure to the value obtained from the independent GT-SUITE run.
      - Setting Initial Conditions
        Set the initial conditions to match the conditions in the GT-SUITE model at the start of coupling. This speeds up convergence at the start of the Simcenter STAR-CCM+ simulation.
      - Defining Boundary Conditions
        Set the boundary types and specify turbulence settings at the flow boundaries. As GT-SUITE supplies all other boundary conditions, no other boundary specifications are required.
      - Specifying the Coupled Boundaries and Material Components
        Associate the Simcenter STAR-CCM+ boundaries and material components with their GT-SUITE counterparts.
      - Setting the Time-Step
        Set the time step to a value of 5.55556E-5 seconds, which in this case is a one degree crank angle rotation.
      - Setting Stopping Criteria
        Set the stopping criteria to terminate the simulation after three engine cycles.
      - Plotting the Mass Flow for Each Cylinder
        Create a mass flow report, monitor, and plot to analyze the fluid flow in and out of each cylinder.
      - Plotting the Mass Fraction of Fresh Air at Cylinder 1
        Create a surface average report, monitor, and plot for the mass fraction of fresh air at Cylinder 1.
      - Visualizing the Velocity Field
        Create a vector scene that displays the velocity field at the mass flow boundaries.
    - Coupling Simcenter STAR-CCM+ to GT-SUITE
      Instruct Simcenter STAR-CCM+ to launch GT-SUITE in server mode and connect to it. Use the average zone flag field function to visualize the areas where the flow is approximately one dimensional.
    - Running the Co-Simulation
      Run the co-simulation and monitor the iterative progress output.
    - Visualizing the Results
      Visualize the flow velocity field and the mass flow throughout the manifold.
    - Summary
  - Co-Simulation API: Spindle Valve
    This tutorial demonstrates how to use the Simcenter STAR-CCM+ Co-Simulation API (Application Programming Interface), in order to couple a partner program to a Simcenter STAR-CCM+ simulation. The partner simulation models the behavior of a spindle ball valve in response to a multiphase flow.
  - CGNS File Import: Stress Analysis with Imported Fluid Loads
    Simcenter STAR-CCM+ allows you to import external mesh and solution data in the form of a CGNS file. You can apply the solution data stored in the CGNS file to regions or boundaries within Simcenter STAR-CCM+.
  - Rotor Blade Aeroelasticity: Modeling Elastic Blade Deformation
    Simcenter STAR-CCM+ allows you to model the aeroelastic performance of elastic rotor blades using displacement and twist data from external files, which can be obtained in multi-body dynamics software such as RCAS, CAMRAD-II, DYMORE, and FLIGHTLAB.
- 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 the Time-Step

Set the time step to a value of 5.55556E-5 seconds, which in this case is a one degree crank angle rotation.

The time step that GT-SUITE uses is not constant, but the Simcenter STAR-CCM+ time step can be greater than the GT-SUITE time step during the simulation. This difference is possible because GT-SUITE can run several time steps while Simcenter STAR-CCM+ is running one time step. However, for numerical reasons, it is recommended that the Simcenter STAR-CCM+ time step is as close as possible to the GT-SUITE time step. As a general guideline, set the Simcenter STAR-CCM+ time-step size to no more than three times the GT-SUITE time-step size.

It is recommended you round up the Simcenter STAR-CCM+ time-step, so the elapsed duration of one cycle in Simcenter STAR-CCM+ slightly exceeds the actual duration of the engine cycle. This rounding ensures the GT-SUITE solver completes the engine cycle before Simcenter STAR-CCM+ terminates it.

To set the time step:

Select the Solvers > Implicit Unsteady node and set Time-Step to 5.55556E-5 s.