[learner1111]

Dear Support,

I have another question on wall film simulation.

We have 2 port designs, A and B, for a GDI engine. In experiments, A has higher soot PN (numner density) than B does. We expected A would also have more piston wall film than B does. But, in simulation, A has less piston wall film than B does.

So my questions are

1. Suppose my logic is problematic, should it be expected that PN correlates with piston wall film, proportionally?

2. Suppose numerical results are wrong, which part shall I pay particular attention to in wall film simulation. I set up my simulation according to the tutorial SI8 case.

Thanks a lot.