Setting Up the Engine Models

By default, Simcenter STAR-CCM+ In-cylinder runs a motored-test simulation, which involves the transient process of the airflow in the ports and cylinder. To account for the injection of fuel and the formation of a fuel film on the engine walls, you must modify the engine models.

To select the models for a charge-motion simulation:
  1. Right-click the Models node and select Edit.
  2. In the Model Selection dialog, select the following models:
    Group Box Model
    Optional Models
    • Injection
    • Liquid Film
    • Gravity (selected automatically)
  3. Click Close.
  4. Save the simulation .