Numerical analysis of combustion and transient heat transfer processes in a two stroke SI engine

F. Illán (1) , M. Alarcón (2)

1 Departamento de Ingeniería Térmica y de Fluidos
2 Departamento Mixto

A zero-dimensional model is presented to simulate the transient processes occurring within a two stroke SI engine. A two zone combustion model, with a spherically expanding flame front originating from the spark location, is applied. The model is numerically solved using the network simulation model which allows coupling the combustion model with a heat transfer model where both radiant and convective heat contributions have been taken into account for the in-cylinder gases. The boundary conditions for this model are the convective heat transferred to the cooling medium. A gas mixture model has been used to obtain the influence of working fluid properties on combustion development.

Mots clés: Two zone combustion model; Spark ignition engine; Heat transfer; Network simulation model

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]

F. Illán, M. Alarcón. Numerical analysis of combustion and transient heat transfer processes in a two stroke SI engine. Applied Thermal Engineering, 2010, 30 (16), pp.2469. ⟨10.1016/j.applthermaleng.2010.06.018⟩. ⟨hal-00675406⟩