[pasha72]

Hello everybody
I am trying to simulate a burner in fluent. I started calculation and after approximately 70 iteration I've got this error
error: Divergence detected in AMG solver: x-momentum
Time step is 1s. I don't have any negative volume.
also fluent give me this hint:
# You may try the enhanced divergence recovery with (rpsetvar 'amg/protective-enhanced? #t)
could you please help me to handle this error?

[LuckyTran]

It's a pretty basic divergence error.

Check your mesh.

Check your setup and everything to make sure you have the right boundary conditions and your initial conditions are reasonable.