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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.
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:
Moving Reference Frames: Marine Propeller in Open Water
This tutorial demonstrates the workflow for setting up an open water simulation for a marine propeller.
Setting Up Boundary Conditions and Values
The inlet, outlet, wall and symmetry boundary conditions must be defined on the boundaries of the newly created regions. The velocity of the flow, V_A, must also be set at the inlet, and as an initial condition in the fluid domain.
Defining the Advance Coefficient
In this steady state simulation, you specify a range of J values using two field functions: J and i. The field function, i, specifies the iteration on which the value of J changes.

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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:
  - Moving Reference Frames: Rotating Fan
    This tutorial outlines the steps that are required to set up and run a rotating radial fan analysis. It uses the Moving Reference Frame model, a steady-state approach that involves two or more frames of reference that can be stationary or moving relative to each other.
  - Rigid Body Motion: Rotating Fan
    This tutorial models the same radial fan problem as the Moving Reference Frames: Rotating Fan tutorial. However, instead of using the steady-state moving reference frame model, this tutorial uses the transient Rigid Body Motion model with actual mesh rotation.
  - DFBI: Lifeboat with Overset Mesh
    This tutorial demonstrates use of the Overset Mesh feature with free surface flow and DFBI to model the motion of a lifeboat falling into water. Simcenter STAR-CCM+ automates the grid overlapping process.
  - DFBI and AMR: Boat In Parameterized Waves
    In Dynamic Fluid-Body Interaction (DFBI) simulations, you can use Adaptive Mesh Refinement (AMR) to dynamically refine the mesh around a moving 6-DOF body based on the computed flow solution.
  - Marine Resistance Prediction: KCS Hull with a Rudder
    This tutorial demonstrates the workflow for setting up a resistance prediction simulation for a marine application.
  - Moving Reference Frames: Marine Propeller in Open Water
    This tutorial demonstrates the workflow for setting up an open water simulation for a marine propeller.
    - Prerequisites
      The instructions in the Open Water tutorial assume that you are already familiar with certain techniques in Simcenter STAR-CCM+.
    - Loading the Simulation File
      For this tutorial, you are provided with a simulation file that contains pre-defined simulation objects. Due to the large number of cells, and the time it takes the solver to run, it is recommended that you run this tutorial in parallel on at least 10 cores.
    - Reviewing the Geometry
      For open water simulations, it is recommended that your geometry model exhibits certain characteristics.
    - Selecting the Mesh Models
      For this type of simulation, the quality of the result depends to a large extent on how successful the mesh is at capturing features of the flow around the propeller.
    - Setting Up Boundary Conditions and Values
      The inlet, outlet, wall and symmetry boundary conditions must be defined on the boundaries of the newly created regions. The velocity of the flow, V_A, must also be set at the inlet, and as an initial condition in the fluid domain.
      - Defining the Advance Coefficient
        In this steady state simulation, you specify a range of J values using two field functions: J and i. The field function, i, specifies the iteration on which the value of J changes.
      - Specifying Boundary Conditions
        Here, you define the boundary types on the extruded mesh regions: Upstream Extension and Downstream Extension, and apply the advance velocity to the inlet boundary. The boundaries on these new regions are set as walls by default.
    - Creating the Reports for the Performance Data
      The propeller performance data consists of the advance coefficient, the thrust coefficient, the torque coefficient, and the open water efficiency.
    - Monitoring the Propeller Performance Plot
      The propellor performance plot contains values of J and 10KQ.
    - Running the Simulation
      Set the stopping criteria and run the simulation.
    - Plotting the Propeller Performance Data
      When complete, the simulation contains all the data that is required to plot the propeller performance data and compare it with the experimental results. The tutorial starting simulation already has a basic plot for you to use.
    - Summary
      This tutorial demonstrated the workflow for setting up an open water simulation for a marine propeller.
    - Bibliography
  - Body Force Propeller Method: Marine Self-Propulsion
    One of the challenges in marine engineering is to predict the speed with which a ship hull moves through water in response to the thrust supplied by a spinning propeller. Simcenter STAR-CCM+ provides a methodology by which you can predict this speed.
  - Blade Element Method: Helicopter Rotor-Fuselage Interaction
    The rotating main rotor blades of a helicopter generate a complex flow field that leads to periodic aerodynamic loads on the airframe. Because of these aerodynamic loads, the passenger cabin can be subject to noise and vibration. These aerodynamic interactions affect the performance of helicopters and they can cause structural damage. Simcenter STAR-CCM+ provides a method for simulating the flow generated by rotor blades that does not require you to mesh the blades individually. This method allows you to predict the complex flow field around a helicopter taking into account the fuselage and rotor flow field interaction.
  - Morphing: Cylinder with Boundary Motion
    Simcenter STAR-CCM+ contains a Morphing Motion Model that enables you to define motion on boundary surfaces using several methods.
  - Overset Mesh Small Gap Modeling: Lobe Blower
    Rotary lobe blowers are valveless positive-displacement units. Fluid is pumped by two counter-rotating lobes that are mounted on parallel shafts. Fluid enters through the expanding volume at the suction side of the pump. As the lobes continue to rotate, the fluid is compressed between the lobes and the pump casing and hence transported towards the discharge.
  - Trajectory Motion: Paint Dipping of a Chassis on a Fixed Skid
    Paint dipping is a process by which a component is coated with paint in a dipping tank. Simcenter STAR-CCM+ allows you to simulate this process and therefore study the effects of different trajectories and component speeds.
  - General Remesh: Gerotor Pump with Small Gap
    A Gerotor pump is a unit with an inner and an outer rotor that have different rotational speeds related to their tooth numbers. The dynamically changing volume between the rotors transports the liquid from inlet to outlet.
- 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 the Advance Coefficient

In this steady state simulation, you specify a range of J values using two field functions: J and i. The field function, i, specifies the iteration on which the value of J changes.

In this tutorial, the starting value of J is 0.6. The value of J increases by 0.2 every 501 iterations. This number of iterations is sufficient for the solution to converge for each value of J.

First, define the field function i:

Create a custom scalar field function and rename it to i.

Select the i node and set the following properties:


Property	Setting
Definition	floor ($Iteration/501)
Function Name	i

Create and define the field function for J:

Create a custom scalar field function and rename it to J.

Select the J node and set the following settings:


Property	Setting
Definition	0.6 + 0.2 * $i
Function Name	J

Proceed to create field functions that supply the parameters for the advance velocity:

Create three custom scalar field functions and name them n, D, and VA respectively.

Set the following properties for the field functions:


Field Function	Property	Setting
n	Definition	15
n	Function Name	n
D	Definition	0.25
D	Function Name	D
VA	Definition	$J * $n * $D
VA	Function Name	VA