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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.
Discrete Element Method
The tutorials in this set illustrate various Simcenter STAR-CCM+ features for simulating Discrete Element Method problems
Arbitrarily Shaped Particles: DEM Polyhedra
This tutorial demonstrates how to compose and inject DEM particles of an arbitrary shape.
Defining Interactions Between DEM Particles and the Walls
The DEM particle interactions define how the tablets behave when they collide with one another and with the cylinder walls.

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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
  - DEM Particles in a Conveyor
    The purpose of this tutorial is to provide a guide to setting up a simulation using the Discrete Element Method.
  - DEM Particle Settling
    This tutorial simulates a three-dimensional solid flow through a model blast furnace to predict the formation of the deadman region at the base of the furnace.
  - Cylindrical Particles in a Rotating Drum
    This tutorial simulates a large number of cylindrical-shaped tablets tumbling in a rotating drum and being sprayed with a protective coating.
  - Arbitrarily Shaped Particles: DEM Polyhedra
    This tutorial demonstrates how to compose and inject DEM particles of an arbitrary shape.
    - Prerequisites
      The instructions in this tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Initial Simulation
      An initial simulation file has been prepared for this simulation. Continue by loading this file and saving it under a different file name.
    - Parameterizing Particle Shapes
      The shape and proportion of the particle is controlled by the design parameters.
    - Coarsening the Particle Shape Tessellation
      The particle shape needs to be made simpler to reduce the run time of the simulation to a practical length.
    - Generating the Mesh
      The starting simulation contains predefined mesh operations that are fully set up and ready for execution.
    - Selecting the Physics Models
      The selected the physics models define the behavior of the multiphase continuum.
    - Defining the DEM Particles
      The models for the Lagrangian phases and the related material properties define the propoerties of the caplet-shaped DEM particles.
    - Defining Interactions Between DEM Particles and the Walls
      The DEM particle interactions define how the tablets behave when they collide with one another and with the cylinder walls.
    - Defining the Injector for the DEM Particles
      The injector delivers the tablets into the cylinder at the beginning of the simulation.
    - Visualizing the DEM Particles in Motion
      By creating a solution history file, the simulation run can be recorded as an animation.
    - Running the Transient Simulation
      The transient simulation runs for a physical time duration of 6.6 s with a time-step of 0.01 s.
    - Analyzing Results
      The scene to display the falling particles is already defined on the input file.
  - Meshfree DEM: Excavator
    For DEM simulations of particles that are not significantly impacted by the surrounding fluid, Simcenter STAR-CCM+ allows you to model the particle behavior without requiring a volume mesh. This type of simulation is known as meshfree DEM.
  - Coarse Grain Particles: Fluidized Bed
  - Flexible Fiber Model: Lawnmower
- 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.

Defining Interactions Between DEM Particles and the Walls

The DEM particle interactions define how the tablets behave when they collide with one another and with the cylinder walls.

To define the interactions:

Right-click the Physics 1 > Models > Multiphase Interaction > Phase Interactions manager and select New > caplet > caplet.

Specify the models and properties for the caplet-caplet interaction:

Rename the node Phase Interaction 1 to caplet-caplet.
Right-click the Phase Interactions > Phase Interaction 1 > Models node and select the Linear Spring contact model.
The Rolling Resistance model is selected automatically. The DEM Phase Interaction model is already selected.
Click Close.
Right-click the caplet-caplet interaction node and select Copy (or use Ctrl-C).
Right-click the Phase Interactions node and select Paste (or use Ctrl-V).
Rename the copy to caplet-wall.

Specify the model properties for the caplet-caplet interaction:

Edit the caplet-caplet > Models node and set the following model properties:


Node	Property	Setting
Linear Spring	Static Friction Coefficient	1.0
	Normal Restitution Coefficient	0.1
	Tangential Restitution Coefficient	0.1
Normal Spring Stiffness Method > Constant	Value	${SpringK}
Tangential Spring Stiffness Method > Constant	Value	${SpringK}
Rolling Resistance
Rolling Resistance Methods > Force Proportional	Coefficient of Rolling Resistance	0.2

Specify the model properties for the caplet-wall interaction:

Edit the caplet-wall > Models node and set the following model properties:


Node	Property	Setting
DEM Phase Interaction	Second Phase	Wall
Linear Spring	Static Friction Coefficient	1.0
	Normal Restitution Coefficient	0.1
	Tangential Restitution Coefficient	0.1
Normal Spring Stiffness Method > Constant	Value	${SpringK}
Tangential Spring Stiffness Method > Constant	Value	${SpringK}
Rolling Resistance
Rolling Resistance Methods > Force Proportional	Coefficient of Rolling Resistance	0.1

Define the parameter SpringK:

Right-click Automation > Parameters, and select New > Scalar.
Rename the Scalar node as SpringK.

Select the SpringK node and set the following properties:


Property	Setting
Value	20000.0
Dimensions	Force/Length

The value for SpringK simulates a softer caplet than do the default values. Softer caplets result in longer collision times, which allows a longer DEM time-step. This value is used to describe the caplet-wall interaction.

Save the simulation.