Compression ratio of internal combustion engine using Ansys Forte

- October 9, 2023 at 12:24 pm
  
  h.al-wakeel
  Subscriber
  
  Hi,
  Please, How can I input or change the value of Compression Ratio of a Port-injected Spark-ignition engine of Chapter 5 in (Ansys Forte Tutorials 2023 R1).
  Thanks
  Haitham
- October 10, 2023 at 12:26 pm
  
  Ren
  Ansys Employee
  
  In Forte the user cannot input the compression ratio (CR) for ICE and the value of the compression ratio is not needed/used in the calculation. Instead, the compression ratio is implied by the dimensions of the geometry such as the chamber volume at TDC and the dimensions of cylinder bore, stroke, connecting rod length and piston offset. If you want to check the CR you can use the CR Calculator in the Utilities group in the GUI.