Gamma GDI engine modelling

1. I took the specifications of 1.6 litre Gamma GDI engine whose manufacturer is Hyundai and was used in Hyundai accent since 2010.

Following are the screenshots :

Following is the engine cylinder geometry specifications which i took.

The results which i got are as follows on cases involving engine speed as 6300 rpm and 4850 rpm :

Now it can be seen that the brake power and torque which i got were 100.7 KW at 6300 rpm and 160.2 Nm at 4850 rpm respectively. The expected outcome which was mentioned by Hyundai was 103 KW at 6300 rpm and 167 Nm at 4850 rpm.

2. Following are the screenshots of post processing for 2 separate cases as mentioned above:

• PV and log PV diag

• in cylinder pressure and burn rate

• valve mass flow and pumping loop