[MagicCFD]

Hello everyone,

i want to ask you about some help with my problem.

The thing is that i calculated timestep, i've put it in controlDict and everything is fine until my simulation get to about 200 - 300 iteration. Before this, maximum Courant number is about 0,001... , but after about 200 - 300 iterations it immidiately (after 2 iterations raised to 1,64e+47)

Could you please tell me where is the problem? Is it still too high timestep?

[peterhess]

Hello MagicCFD

set:

adjustTimeStep true;

to

false

and see what happends...

Like that openFoam is executing the deltaT you define in the controlDict without overwriting this...

And it is helpful to limit courant to 1 by using:

maxCo 1;

in controlDict.

...

anyway, it is a good idea to start with:

adjustTimeStep false;

run some iterations

and then turn it to true...

Regards

Peter