Acceptable courant number for an instationary simulation of natural convection in a f
Hi @ all,
i have the following questions:
what is the maximal acceptable courant number for an instationary simulation of natural convection in a fluid region? what kind of literature would you suggest? i have a hard time finding literature that acknowledge this matter properly.
are there any ways to decrease the courant number besides decreasing the time step? because i have to simulate over a pretty long time span and a small time step would be a big nuisance
the maximum courant number in my actual simulation is over 110, the time step is 1 sec, the inner iterations are set to 20 and i am pretty sure the courant number is a way too high, the residuals look pretty good i think
thanks for you help pics are attached
for more information of my simulation :
can no one give me some advice?
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