Simulation result look like this

hey every one
i make the mesh setting and let it simulated.
but the result look like this,it seems like “no result”
what happen?and what should i do?


here is the link of my project

Hi @paehen18: Your simulation did not converge:

After 100 steps it goes awry and in the log file you can see:

time step continuity errors : sum local = 8.95840157255e+33, global = 2.66902952489e+31, cumulative = 2.92996143408e+31

That continuity error should be tiny, < 1.0-5e, but you see yourself in the Convergence plot, that you should be stopping that simulation by hand after 200-300 steps.

You have very ‘special’ basic HEX mesh cell ratio (like 1 x 1 x 20), which may be the problem. But first I suggest to set Potential foam initialisation and try again:

One more thing: your ‘sky’ and ‘sides’ should not be ‘no-slip’ walls. They are set by default to ‘no-slip’ if not defined by yourself. I propose to define them (in Boundary conditions) as ‘transparent’ that way:

image

Cheers,

Retsam

3 Likes