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Old   October 20, 2009, 04:30
Question Error when restart simulation
Marco Turchi
Join Date: Jul 2009
Location: Pesaro, Italy
Posts: 31
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zebu83 is on a distinguished road
Good morning OpenFoamers!

I'm running a channel flow simulation with OF 1.5.x, I modified a little bit "channelOodles" to make a DNS of a channel and of course, I increase the mesh resolution to have a cell dimension like Moser, or Marusic show in their paper.

It's take long time to converge and sometime it stopped because there's not enough free space in hard disk. So I set, in controlDict:

starFrom startTime;
startTime 3000; (that for me it is the last field saved)

then I run again the simulation and what's happen? It happen that statistic, like "uprime", or "uvprime" are totaly wrong! I mean if "uprime_3000" is quite good, but not perfect, "uprime_3020" (next field saved) it's like "uprime_1000" or perhaps "uprime_100" that is the first field!

I'll post some pictures to be more clear:


Then I try to change: instead to put:
startFrom starTime
startTime 3000

I wrote:
startFrom latestTime

and I comment the row "starTime ..."

But the result it's the same nothings change!!
Here there are pictures from second option:


What is it wrong?

Thank you.


Last edited by zebu83; October 27, 2009 at 06:24.
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