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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.
Defining the Fuel Droplets

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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.

Defining the Fuel Droplets

Within the Continua > Fluid Volume models, right-click the Lagrangian Multiphase > Lagrangian Phases node and select New > Free-stream Phase.

Right-click the Lagrangian Phases > Phase 1 > Models node and select the following models in order.


Group Box	Model
	Residence Time (selected automatically)
Particle Type	Material Particles
	Pressure Gradient Force (selected automatically)
	Spherical Particles (selected automatically)
Material	Liquid
Equation of State	Constant Density
Mass Transfer	Quasi-Steady Evaporation
Mass Transfer	Energy
Track Sampling	Track File
Optional Particle Forces	Drag Force
Optional Models	Turbulent Dispersion
	Two-Way Coupling
	Parcel Depletion

Click Close.
Right-click the Phase 1 > Models > Liquid > H2O node and select Replace with.
In the Replace Material dialog, select C12H26 (Dodecane) and click OK.

Expand the Phase 1 > Models node and set the following properties:


Node	Property	Setting
Quasi-Steady Evaporation	Vapor Component	NC12H26
Track File	Scalars	In addition to default selections, select: Droplet > Droplet Latent Heat of Vaporization Droplet > Droplet Saturation Pressure Parcel > Parcel Mass Flow Rate Particle > Particle Density Particle > Particle Diameter Particle > Particle Mass Particle > Particle Temperature
Track File	Vectors	In addition to default selections, select, Particle > Particle Velocity
Turbulent Dispersion	Exact Eddy Interaction Time	activated

Select the Liquid > C12H26 > Material Properties > Saturation Pressure > Constant node and set Value to 600,000 Pa.

The fuel droplets are injected into the computational domain by an injector.

Right-click the Injectors node and select New.

Select the Injectors > Injector 1 node and set the following properties:


Property	Setting
Lagrangian Phase	Phase 1
Type	Hollow Cone Injector
Inputs	Fluid Volume

Expand the Injector 1 > Values node and set the following properties:


Node	Property	Setting
Injector Diameter	Value	0.005 m
Inner Cone Angle	Value	10 deg
Outer Cone Angle	Value	30 deg
Parcel Streams	Value	100
Axis	Origin	[0.0426, 0.1595, 0.01276]
Mass Flow Rate	Value	1.0E-4 kg/s
Particle Diameter	Value	3.0E-5 m
Velocity Magnitude	Value	5.0 m/s

Save the simulation.