Impact of wall heat transfer on engine behavior

The effect of thermal wall functions is discussed in terms of engine thermal balance, thermal state characterization and impact on engine performance. In particular, the newly implemented GruMo-UniMORE wall function is applied to improve the prediction of knock limit in SI engines and combustion behavior in CI engines.

Effects of meshing strategies on in-cylinder flows

The presentation shows the impact of different meshing strategies on the simulation of the in-cylinder flow structure of the Transparent Combustion Chamber (TCC) engine. Large Eddy Simulation of several consecutive engine cycles are compared to experimental measurements, and the impact of the adopted meshing trategy on both accuracy and computational efficiency is evaluated.

Evaluation of the flame propagation in an engine

Evaluation of the flame propagation in an engine simulated with the ECFM combustion model