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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.
Reacting Flow
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for simulating reacting flows such as combustion.
Spray Combustion: n-Dodecane
In this tutorial, you simulate spray combustion using the Steady Laminar Flamelet (SLF) model with the Soot Method of Moments model.
Selecting the Physics Models
The Multi-Component Gas model is used to define the gas mixture of n-dodecane and air. The Non-Premixed Flame model is used since the fuel and air are not premixed. The fuel, n-dodecane, initially exists as droplets that are modeled using the Lagrangian Multiphase model. Since NOx and soot emissions are important to monitor in many industrial applications, the NOx Emissions and Soot Emissions models are also used.

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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.
  - Complex Chemistry: Methane-Air Jet Flame
    This tutorial demonstrates how to set up and solve a complex chemistry simulation to model finite-rate chemistry in a flame.
  - Spray Combustion: n-Dodecane
    In this tutorial, you simulate spray combustion using the Steady Laminar Flamelet (SLF) model with the Soot Method of Moments model.
    - Prerequisites
      The instructions in the Spray Combustion: n-Dodecane tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Starting File and Generating the Mesh
      You start this tutorial by loading a sim file in which a mesh, that is suitably refined for the purpose of this tutorial is ready to run.
    - Selecting the Physics Models
      The Multi-Component Gas model is used to define the gas mixture of n-dodecane and air. The Non-Premixed Flame model is used since the fuel and air are not premixed. The fuel, n-dodecane, initially exists as droplets that are modeled using the Lagrangian Multiphase model. Since NOx and soot emissions are important to monitor in many industrial applications, the NOx Emissions and Soot Emissions models are also used.
    - Generating the Steady Laminar Flamelet Table
      After selecting the appropriate physics models, you import the reduced chemical mechanism, define the composition of the fluid streams, and generate the SLF table that the SLF model requires.
    - Defining the Fuel Droplets
    - Setting Up Post-Processing
      Before running the simulation, you prepare scenes and plots to display the temperature and soot mass density across a cross section of the fluid domain, and a 3-D flame using volume rendering.
    - Running the Simulation
      In this section, you adjust the solver settings and stopping criteria before running the simulation.
    - Reviewing the Results
    - Bibliography
  - Flamelet Generated Manifold: Perfectly Premixed Combustion with Adaptive Meshing
    This tutorial simulates lean perfectly-premixed propane combustion using the Flamelet Generated Manifold (FGM) model in a combustor where the flame is stabilized behind a V-shaped bluff body. The Large Eddy Simulation (LES) model is used to directly resolve the large scales of the turbulence, and model the small scale motions, in the flow domain.
  - Surface Chemistry: Methane on Platinum Oxidation
    This tutorial models methane on platinum oxidation using complex chemistry models.
  - Reacting Channels: Steam Methane Reforming
    In this tutorial, you use the Reacting Channel Coupling co-simulation model in Simcenter STAR-CCM+ to solve a reacting flow simulation using the same method as is required for systems such as: reformers, crackers, and process heaters.
  - Acoustic Modal Analysis: Thermo-Acoustic Stability of a Cylindrical Burner
    Thermo-acoustic instability, that is, large-amplitude pressure oscillations, can be encountered in many devices such as gas turbines, rocket engines, or combustors. The instabilities, which can have detrimental consequences, are excited by the feedback loop between the unsteady combustion and the natural acoustic modes of the devices.
  - Eddy Break-Up: Coal Combustion
    The combustion of pulverized coal is still one of the main primary energy conversion mechanisms worldwide.
  - Fire and Smoke Wizard: Steckler Room
    This tutorial demonstrates the Fire and Smoke Wizard. The geometry and fire settings closely resemble those Steckler reported, including radiation and wall heat absorption. This setup allows a preliminary comparison with experimental data.
- 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.

Selecting the Physics Models

The Multi-Component Gas model is used to define the gas mixture of n-dodecane and air. The Non-Premixed Flame model is used since the fuel and air are not premixed. The fuel, n-dodecane, initially exists as droplets that are modeled using the Lagrangian Multiphase model. Since NOx and soot emissions are important to monitor in many industrial applications, the NOx Emissions and Soot Emissions models are also used.

Right-click the physics continuum, Fluid Volume, choose Select Models, and select the following models in order.


Group Box	Model
Space	Three Dimensional (previously selected)
Time	Steady
Material	Multi-Component Gas
Reaction Regime	Reacting
Reacting Flow Models	Flamelet
Flamelet Models	Steady Laminar Flamelet (SLF)
	Ideal Gas (selected automatically)
	Non-Adiabatic (selected automatically)
Flame Type	Non-Premixed Flame
Flow	Segregated Flow (selected automatically)
	Gradients (selected automatically)
	Turbulent (selected automatically)
	Segregated Fluid Enthalpy (selected automatically)
	Reynolds-Averaged Navier-Stokes (selected automatically)
Reynolds-Averaged Turbulence	K-Omega Turbulence
	SST (Menter) K-Omega (selected automatically)
	Wall Distance (selected automatically)
	All y+ Wall Treatment (selected automatically)
Optional Models	Lagrangian Multiphase
Optional Models	NOx Emission
Specific NOx Models	NOx Thermal
Optional Models	Soot Emissions
Soot Emissions Model	Soot Moments
Optional Models	Radiation
Radiation	Participating Media Radiation (DOM)
Radiation Spectrum (Participating)	Gray Thermal Radiation

Click Close.

In this tutorial, the simulation is run for a shorter number of iterations than would be used for a typical industrial case. Therefore, you also reduce the iteration at which Simcenter STAR-CCM+ begins solving for NOx and Soot.

Select each node individually and set Begin value to 200.
- Models > NOx Emission
- Models > Soot Moments
To make sure that the fuel droplets evaporate, select the Continua > Fluid Volume > Initial Conditions > Static Temperature node and set Value to 850 K.