what's faster, 2nd order eqs from the begining or 1st order and then 2nd order eqs?
 

Hi,

I have to repeat the same experiment for the intake of an engine with several pressure differences in order to obtain a curve.

I would like to know what metodology you think is faster obtaining simmilar results:

1. begin with a simple model and to introduce complexities such as another turbulent model, 2nd order upwind eqs and propierties as a function of Temp (rather than constant) the sooner the better
2. include one after another with some iterations between them?

I mean, do all the set up once and let it converge or begin from the simplest, 100 iter, improved model, 100 iter, 2nd order upwind eqs, +iter...


Thank you in advance