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

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Old   April 1, 2014, 09:08
Default what's faster, 2nd order eqs from the begining or 1st order and then 2nd order eqs?
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Juhti
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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
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