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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.
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.
FSI and 6-DOF Motion: Stress Analysis on Boat Propeller
In fluid-structure interaction simulations, you can define the motion of a solid structure relative to the motion of a 6-DOF body. A typical application is the analysis of the mechanical stresses on propellers attached to marine vessels.
Defining the Motion of the Solid Propeller
The boat-propeller system moves rigidly in response to the applied fluid forces. Additionally, the solid propeller has a prescribed rotation motion and can deform under the applied fluid loads.

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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.
  - Linear Stress Analysis: Cantilever I Beam
    This tutorial demonstrates the basic concepts and workflow for linear FE (Finite Element) structural analyses in Simcenter STAR-CCM+.
  - Plane Stress: Plate with Circular Hole in a Tensile Field
    This tutorial demonstrates how to set up a linear elastic FE (Finite Element) stress analysis in Simcenter STAR-CCM+.
  - Hyperelastic Stress Analysis with Adaptive Time-Step: Trileaflet Heart Valve
    Trileaflet valves are prosthetic heart valves that open and close because of the deformation of the flexible leaflets [reflink]. Obtaining a successful simulation of the valve opening event is challenging due to the snap through instability on which the valve operation depends. Simcenter STAR-CCM+ provides a dynamic time-step control that makes a successful simulation possible.
  - Normal Modes Solver: Wind Turbine Blade
    In solid mechanics, normal modes describe the oscillating motion of a solid body at a set of fixed frequencies, known as natural (or resonant) frequencies of the body.
  - Conjugate Heat Transfer and Thermal Stress: Exhaust Manifold
    Simcenter STAR-CCM+ allows you to combine the advantages of the finite volume (FV) and the finite element (FE) methods together in the same simulation.
  - Thermal Stress from Mapped Temperature Data: Exhaust Manifold
    This tutorial demonstrates how to perform thermal stress analysis in Simcenter STAR-CCM+.
  - Fluid-Structure Interaction: Vibrating Pipe
    This tutorial demonstrates how to set up fluid-structure interaction (FSI) problems in Simcenter STAR-CCM+.
  - FSI with Prescribed Solid Motion: Flapping Wing
    In Simcenter STAR-CCM+, you can analyse the two-way coupled fluid-structure interaction of systems whose motion paths are described by multiple superposed motions.
  - FSI and 6-DOF Motion: Stress Analysis on Boat Propeller
    In fluid-structure interaction simulations, you can define the motion of a solid structure relative to the motion of a 6-DOF body. A typical application is the analysis of the mechanical stresses on propellers attached to marine vessels.
    - Prerequisites
      The instructions in this tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Initial Simulation
      As the focus of this tutorial is defining the motion of the system, you are provided with a starting simulation that includes the required regions, boundaries, interfaces, and physics continua. Load the initial simulation in Simcenter STAR-CCM+ and review the predefined settings.
    - Generating the Mesh
      The starting simulation contains predefined mesh operations that are fully set up and ready for execution. These operations prepare the geometry parts, subtract the fluid volume parts, and generate appropriate meshes for the fluid and solid regions.
    - Defining the 6-DOF Motion
      In this simulation, you model the overall system (the boat and its components) as a 6-DOF rigid body. Simcenter STAR-CCM+ calculates the motion of the center of mass of the system based on the properties of the body (mass and moment of inertia) and the forces and moments exerted by the surrounding fluid.
    - Defining the Motion of the Solid Propeller
      The boat-propeller system moves rigidly in response to the applied fluid forces. Additionally, the solid propeller has a prescribed rotation motion and can deform under the applied fluid loads.
    - Defining the Motion of the Fluid around the Propeller
      The fluid region around the propeller is morphed according to the calculated 6-DOF rigid motion, the prescribed rotation of the propeller, and the non-rigid deformations of the propeller computed by the Solid Stress solver.
    - Creating Scenes and Reports
      For visualization, you create a scene that displays the stresses on the propellers and the air-water free surface. To monitor the 6-DOF motion, you create reports for the translation motion along the Z axis and the rotation motion around the Y axis.
    - Running the Simulation
      Define solver settings and stopping criteria, then run the simulation. You are advised to run this tutorial on a multi-core machine with four cores or more. Depending on the specifications of your computer, this tutorial takes one to two days to complete.
  - FSI with Opening and Closing Flow Paths: Diaphragm Valve
    Simcenter STAR-CCM+ provides the capability of performing a two-way coupled fluid-structure interaction (FSI) simulation with opening and closing flow paths, which are due to the deformation of a hyperelastic non-linear material such as rubber. This capability can aid in the design of (but is not limited to) seals, valves, and gaskets used within a range of industries.
  - FSI Remeshing and Tessellated Geometry Parts Contact: Rubber Sleeve
    Simcenter STAR-CCM+ allows you to model the mechanical contact between a deformable structure and the tessellated surfaces of geometry parts within the simulation. This is useful to simulate the interaction between an elastic solid and a rigid obstacle, without modeling the obstacle explicitly.
- 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 Motion of the Solid Propeller

The boat-propeller system moves rigidly in response to the applied fluid forces. Additionally, the solid propeller has a prescribed rotation motion and can deform under the applied fluid loads.

To define the motion of the solid propeller:

In the physics continuum, Continua > Solid Physics, activate the Flexible DFBI Motion model.
Select the Regions > Propeller > Physics Conditions > Flexible DFBI Motion Option node and set Flexible DFBI Motion Option to DFBI - Deformable moving attachment.
Right-click the DFBI > 6-DOF Bodies > BoatWithPropeller node and select Create > Body Motion.
Simcenter STAR-CCM+ adds the 6-DOF body motion under the Tools > Motions node.

To superpose the propeller rotation on the 6-DOF motion:

Right-click the Tools > Motions > BoatWithPropeller-Motion > Superposing Motions node and select New > Rotation.

To define the rotation, you specify the rotation rate with respect to a coordinate system that follows the 6-DOF motion:

Edit the BoatWithPropeller-Motion > Superposing Motions > Rotation node and set the following properties:


Node	Property	Setting
Rotation Axis	Direction	[0.0, 0.0, 1.0]
Rotation Rate	Rotation Rate	-30 rpm

When you create a superposing rigid motion, Simcenter STAR-CCM+ automatically creates the coordinate system in which the motion is defined. The coordinate system associated with a superposing motion is defined with respect to the coordinate system associated with the parent motion:

Adjust the settings of the coordinate system for the superposed rotation motion, so that it is aligned with the propeller:

Expand the Tools > Coordinate Systems > Laboratory > Local Coordinate Systems node.

Select the BoatWithPropeller-CSys > Local Coordinate Systems > Rotation-CSys node and set the following properties:


Property	Setting
X Axis Input	[0.0, -1.0, 0.0]
Vector on X-Y Plane Input	[0.0, 0.0, 1.0]
Origin	[-4.155557, 0.3, -0.1872958]

To account for the non-rigid displacements calculated by the solid stress solver, superpose the Solid Displacement motion:

Right-click the Motions > BodyWithPropeller-Motion > Superposing Motion > Rotation > Superposing Motions node and select New > Solid Displacement.
Select the Regions > Propeller > Physics Values > Motion Specification node and set Motion to BoatWithPropeller-Motion > Rotation > Solid Displacement.
Save the simulation.