CFD simulation of wall film during fuel injection and combustion in a three-cylinder ‎turbocharged gasoline direct injection engine

In this research, a 3D-CFD model was created to investigate the behavior of spray and combustion in a three-cylinder GDI engine using a six-hole nozzle injector. To validate the model, in-cylinder data pressure was conducted at Iran Khodro Power Train Company (IPCO) under wide-open throttle and 5500 rpm conditions. The obtained data were incorporated into the CFD model to simulate the spray evolution and combustion process inside the cylinder during fuel injection. Droplet temperature and lambda distribution from 30 deg to 279 deg after injection Were displayed. Temperature distribution during 2 to 40 deg ATDC was illustrated in the paper. Finally, evaporated fuel and wall film of the cylinder head, liner, and piston. Intake and exhaust valves and equivalence ratio in the combustion chamber have been studied.