Home
Add-ons
Simcenter STAR-CCM+ comes with add-ons that provide a dedicated approach for simulations of specific engineering applications—the Electronics Cooling Toolset and the Simcenter STAR-CCM+ In-cylinder Solution.
Simcenter STAR-CCM+ In-cylinder Solution
Simcenter STAR-CCM+ In-cylinder Solution provides a simplified approach within Simcenter STAR-CCM+ to perform transient moving-mesh simulations of internal combustion engines (ICE).
Simcenter STAR-CCM+ In-cylinder Troubleshooting
If you encounter problems when setting up or running an ICE simulation, check these common problem scenarios for advice on how to proceed. Also consult the Knowledge Base on the Support Center portal.

Share

Link: copied

Breadcrumb: copied

Add-ons
Simcenter STAR-CCM+ comes with add-ons that provide a dedicated approach for simulations of specific engineering applications—the Electronics Cooling Toolset and the Simcenter STAR-CCM+ In-cylinder Solution.
- Electronics Cooling Toolset
  The Electronics Cooling Toolset provides a simplified approach within Simcenter STAR-CCM+ to perform simulations of thermal management for electronics devices—from design to solution analysis.
- Simcenter STAR-CCM+ In-cylinder Solution
  Simcenter STAR-CCM+ In-cylinder Solution provides a simplified approach within Simcenter STAR-CCM+ to perform transient moving-mesh simulations of internal combustion engines (ICE).
  - ICE Mechanism
    The development and improvement of internal combustion engines comes from a systematic analysis of the in-cylinder flow. Simcenter STAR-CCM+ In-cylinder is capable of simulating the in-cylinder flow of reciprocating internal combustion engines that operate on a four-stroke or a two-stroke cycle at steady speed.
  - Geometry Requirements
    For the automated setup of an internal combustion engine in Simcenter STAR-CCM+ In-cylinder, the geometry that you import must meet certain criteria. These criteria concern the file format as well as the positions and names of bodies and faces.
  - Valves Motion
    Simcenter STAR-CCM+ In-cylinder models the motion of valves using valve lift curves.
  - Piston Motion
    To model the motion of the piston, Simcenter STAR-CCM+ In-cylinder requires specific information about the engine geometry.
  - Fuel Injection
    Simcenter STAR-CCM+ In-cylinder provides methods for predicting the charge motion in an internal combustion engine—from fuel injection to fuel evaporation to air-fuel vapor mixing.
  - Combustion and Ignition
    Simcenter STAR-CCM+ In-cylinder offers efficient methods for simulating the combustion process in an internal combustion engine.
  - Mesh Strategy
    Simcenter STAR-CCM+ In-cylinder generates a trimmed mesh with automatic volumetric refinements to account for various flow characteristics within the flow domain. For a cylinder sector model, Simcenter STAR-CCM+ In-cylinder generates an axisymmetric mesh.
  - Solution Analysis
    Simcenter STAR-CCM+ In-cylinder allows you to analyse the solution of an ICE simulation while the simulation is running as well as when the simulation completes.
  - Simcenter STAR-CCM+ In-cylinder Workflow
    To set up, run, and post-process an engine cycle problem in Simcenter STAR-CCM+ In-cylinder, you work through the nodes from top to bottom.
  - Simcenter STAR-CCM+ In-cylinder Troubleshooting
    If you encounter problems when setting up or running an ICE simulation, check these common problem scenarios for advice on how to proceed. Also consult the Knowledge Base on the Support Center portal.
  - Simcenter STAR-CCM+ In-cylinder Reference
    Simcenter STAR-CCM+ In-cylinder provides specific right-click actions and properties for the various objects in the object-tree.
  - Simcenter STAR-CCM+ In-cylinder Formulation
- Application Productivity Tools
  Application Productivity Tools (APTs) are specialized add-ons that allow you to focus on specific applications. These tools are available as plugins for Simcenter STAR-CCM+.

Simcenter STAR-CCM+ In-cylinder Troubleshooting

If you encounter problems when setting up or running an ICE simulation, check these common problem scenarios for advice on how to proceed. Also consult the Knowledge Base on the Support Center portal.

Errors about Invalid CAD

When creating Engine Parts from imported Geometry parts, various errors about invalid CAD data can occur. In most cases, these errors indicate problems with the imported CAD model.

Check that all bodies are valid from the Parasolid kernel point of view.
In your CAD tool, ensure that the tolerance is set to 5.0E-5 mm or smaller when exporting the CAD geometry.
Try to increase or decrease the Normalized Valve Curtain Interface Position in order to accurately reflect the valve contact.
When importing the CAD geometry, try to deactivate the Remove Redundant Topology option.
Contact your support engineer.

Negative Volume Cells

In most cases, negative volume cells during the run occur due to an inappropriate time-step size or due to re-mesh criteria that are not sufficiently sensitive.

Reduce the Time-Step Size near the moment of valve closure. For example, use a time step table that allows you to define a variable time-step size.
Apply relevant re-mesh criteria. For example, increase the Min Cell Quality.
Try to increase or decrease the Normalized Valve Curtain Interface Position in order to accurately reflect the valve contact.
Increase the Closure Tolerance up to 0.2 mm.

Solution Divergence

Residuals that show a solution divergence indicate a problem in the overall setup or an inappropriate time step size.

Make sure that the overall setup is correct. Some things to look for are:
- Reasonable initial and boundary conditions.
- Correct units in the input tables.
- Correct pressure specification—Simcenter STAR-CCM+ In-cylinder requires Absolute Pressure values for initialization and at flow boundaries.
Reduce the Time-Step Size.
Reduce the Under-Relaxation Factors.