CFD MODELING OF FUEL DROPLET EVAPORATION AND COMBUSTION PROCESSES IN GDI (GASOLINE DIRECT INJECTION) ENGINES
Keywords:
Keywords: GDI engine, CFD modeling, fuel evaporation, combustion dynamics, temperature distribution, pressure distribution.Abstract
Abstract
This paper presents a theoretical CFD (Computational Fluid Dynamics)
modeling of the evaporation and combustion processes of fuel droplets in GDI-type
internal combustion engines. The evaporation and combustion dynamics of the fuel
droplet are characterized by spatial and temporal variations of temperature, pressure,
and concentration fields. Based on the Navier–Stokes equations and the laws of
conservation of mass and energy, a comprehensive mathematical model of the system
is developed. Using CFD methods, the temperature and pressure distributions within
the combustion chamber were determined. The results demonstrate the physical
validity of the model and provide recommendations for optimizing fuel injection
parameters to enhance combustion efficiency and reduce emissions.
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