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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.
Design Exploration
The tutorials in this set illustrate various features for running design exploration studies in Design Manager.
Surrogate FMU: Pipeline Junction with Simcenter Flomaster
Oil transportation from shore-based storage facilities to ships anchored offshore is often analysed using 1D simulation tools such as Simcenter Flomaster. In this tutorial, the flow behavior through a 3D component is characterized using Simcenter STAR-CCM+, exported as an FMU, and introduced within a 1D model of a ship to shore system in Simcenter Flomaster.
Running the Design Study and Exporting FMU
By default, all the surrogates are computed automatically at the end of the design study run. To verify that the surrogate approximations represent the model behavior, you create surrogate fit plots.

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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.
- Design Exploration
  The tutorials in this set illustrate various features for running design exploration studies in Design Manager.
  - Adjoint Shape Optimization: Mesh Sensitivity for Dual Element Wing
    A typical application of an adjoint flow analysis is to use the computed gradients in a shape optimization study with respect to a chosen cost function. In Simcenter STAR-CCM+, simulation operations allow you to construct an automated pipeline for optimization studies without any need for Java macros.
  - Adjoint Shape Optimization: Surface Sensitivity for S-Bend
    An adjoint shape optimization study requires a repeated sequence of steps in which the mesh is deformed according to a deformation field derived from the surface sensitivity. Simulation operations include specific steps that allow you to automate this workflow without requiring Java macros.
  - Adjoint Shape Optimization: Surface Mesh Morphing for Y-Junction Manifold
    Simcenter STAR-CCM+ provides the adjoint solution for shape optimization as a method for finding modified designs to improve performance and efficiency.
  - Adjoint Topology Optimization: Flow through a U-Bend
    Simcenter STAR-CCM+ provides adjoint topology optimization as a method for finding optimized designs for complex flow problems. Topology optimization can aid in the design of, for example, components found in aeroplanes or ground transportation vehicles such as air ducts by improving performance and efficiency.
  - Pareto Optimization: Static Mixer
    One of the study types that Design Manager supports is the multiple-objective tradeoff optimization, also called Pareto optimization. In this type of study, the optimal design is not unique, but a set of designs, which are expressed through a Pareto front. Design Manager searches for the combination of inputs that gives the best overall result among competing objectives.
  - Design Sweep of a Static Mixer
    Design Manager provides an automated method for evaluating the performance of a single product design.
  - Pareto Optimization: 2D Airfoil Design
    Design Manager allows you to run design optimization studies with multiple competing objectives. This type of study is known as multiple-objective tradeoff optimization, or Pareto optimization.
  - Export of 2D Field Data for ROM: Airfoil Analysis
    In Simcenter STAR-CCM+, you can export 2D field data from a design study in Design Manager to Simcenter Reduced Order Modeling.
  - Part-Replacement Using Design Manager
    In some industrial situations you are required to run standard flow analyses on different product configurations for regulatory requirements. Through its part-replacement capability, Design Manager can assist with automating these analyses.
  - Surrogates: Reliability of an Industrial Exhaust System
    Robustness and reliability studies are employed to assess the influence of installation and manufacturing tolerances on the performance of a design. In Design Manager, surrogate models provide an efficient method for running these studies as using surrogates reduces the overall number of flow simulations that must be run.
  - Surrogate FMU: Flapper Valve Representation within Simcenter Amesim
    When a 1D fluid system simulation contains a complex hydraulic component, an FMU built from a surrogate model can represent the influence of the component without requiring a full 1D/3D co-simulation. Design Manager provides a facility for exporting such FMUs based on a surrogate model.
  - Surrogate FMU: Pipeline Junction with Simcenter Flomaster
    Oil transportation from shore-based storage facilities to ships anchored offshore is often analysed using 1D simulation tools such as Simcenter Flomaster. In this tutorial, the flow behavior through a 3D component is characterized using Simcenter STAR-CCM+, exported as an FMU, and introduced within a 1D model of a ship to shore system in Simcenter Flomaster.
    - Creating a Design Manager Project
      In Simcenter STAR-CCM+, surrogate models are generated using Design Manager. Design Manager allows you to run Design of Experiment studies that generate the data points required for the surrogates.
    - Setting up a Design Study and Defining Surrogates
      The pipeline junction surrogate must provide results across the range of flow conditions that are expected in the system. For this tutorial, depending on the pump operating conditions, estimated flow conditions range from zero to 720.33 kg/s in each of the three arms of the junction.
    - Running the Design Study and Exporting FMU
      By default, all the surrogates are computed automatically at the end of the design study run. To verify that the surrogate approximations represent the model behavior, you create surrogate fit plots.
    - Importing FMU into Simcenter Flomaster 1D Simulation
      Simcenter Flomaster provides numerous sample systems as pre-defined templates. You start the Flomaster model from the sample system Ship to Shore, which models a typical issue caused by sudden movement of water.
    - Running 1D Pipeline Simulation using Manifold FMU
      In Simcenter Flomaster, you run the simulation in steady state to check the pressure different between inlets and outlet of the two junctions.
    - Analyzing the Results
      You compare the pressure levels before and after the four-armed junctions. To check the correlation between pressure drop and mass flow rate, you switch off one pump to compare the pressure drops between other inlets and the outlet.
  - Smart Sweep Study for Air Compressor: Performance Map
    The operating conditions of an air compressor are stable for mass flow values within a specific range. The operating range varies with the rotational rate of the air compressor rotor. Mass flow values below this range are too low to maintain the desired pressure ratio and can lead to a harmful surge in the air compressor. Mass flow above this range can lead to a choke in the air compressor.
  - Design Manager: Gradient-Based Optimization of a U-Bend
    Gradient-Based Optimization is an iterative method that optimizes a set of geometric features towards an engineering objective.
- 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.

Running the Design Study and Exporting FMU

By default, all the surrogates are computed automatically at the end of the design study run. To verify that the surrogate approximations represent the model behavior, you create surrogate fit plots.

After the design study completes, you export the surrogates to a Functional Mockup Unit (FMU) for use in Simcenter Flomaster.

To run multiple designs simultaneously:

Select the Design Studies > junction_DOE > Settings > Run Settings node and set the Simultaneous Jobs to 5.

To launch the design study run:

Right-click the Design Studies > junction_DOE node and select Run Study.

After running the design study, to make sure that the approximation is accurate, you create one surrogate fit plot for each response.

To create a Actual vs Residual plot for the first response:

Right-click the Design Studies > junction_DOE > Surrogates > Surrogate_SA_Total_Pressure_Inlet1 node and select Create Plot > Surrogate > Actual vs Residual.
In the Actual vs Residual Plot Setup dialog, click OK.
By default, Design Manager plots the predicted value against the cross validation residuals of this response. See also Creating XY Plots.

The bottom axis represents the predicted response values from the surrogate while the left axis represents the cross validation residuals from design runs.
Cross V in the plot displays the Root Mean Squared Error (RMSE) of the Cross V(alidation) residuals of all the designs from the specified Design Set. The Cross V(alidation) residual of a design is the difference between the actual response value and the response value predicted by the reduced surrogate fit according to the cross-validation scheme specified. See also Cross Validation Scheme.
The Cross V value 11.169675 Pa indicates a good surrogate prediction since the value is low compared to the pressure level of the response. Create the plots also for the other two responses also.

For a simpler setup in Simcenter Flomaster, you export the three surrogates in one FMU file rather than using separate files:

Right-click the Design Studies > junction_DOE > Surrogates node and select Export to FMU....
In the Export to FMU dialog, enter the name junction_surrogates.fmu and click Save.
By default, Simcenter STAR-CCM+ exports an FMU of the type Model Exchange with FMI version 2.0. See also Export to FMU....
Save the Design Manager project.