Homogeneous charge compression ignition (HCCI) is a combustion process that combines the ignition process of a compression ignition (CI) engine with the premixed nature of the spark ignition (SI) engine. The HCCI engine platform is nearly the same as the traditional CI engine.
One of the best combustion models that based on turbulence effects is Magunessen Eddy Dissipation model, this model is simple because of eliminate number of species and has a powerful validation advantage with experimental data.