[Mina_Mbg]

Hi every body
I am doing 2D simulation for the quenching process with the following properties:
velocity:35m/s
Temperature:1143 °k
Turbulent Model :K-omega SST
Explicit RF for Momentum: 0.6
for Pressure:0.3
I use Nitrogen and Helium as a fluid for quenching
so the some material properties are set as polynomial
the first step is steady state then I have to solve it in 493°k for transient
but even in steady I get the following error ant it divenges so rapidely!!!!

reversed flow in 6 faces on pressure-outlet 17.
# Divergence detected in AMG solver: pressure coupled -> Decreasing coarsening group size!
# Divergence detected in AMG solver: pressure coupled -> Increasing relaxation sweeps!
# You may try the enhanced divergence recovery with (rpsetvar 'amg/protective-enhanced? #t)

Error: Divergence detected in AMG solver: pressure coupled

Error: Divergence detected in AMG solver: pressure coupled


any solution?

[ghofrane]

hi ,
i have the same problem are you solved it ?¸
please tel me and thank you

[Mina_Mbg]

Hi,
Thanks for the comment.yes it has already solved I had to patch the whole domain (temperature )

Originally Posted by ghofrane

hi ,
i have the same problem are you solved it ?¸
please tel me and thank you

[eeLio]

Originally Posted by Mina_Mbg

Hi,
Thanks for the comment.yes it has already solved I had to patch the whole domain (temperature )

Hi,
I have the same problem,
What does "patch the whole domain" mean?

Best

Fred

[BHOLU]

Originally Posted by Mina_Mbg

Hi,
Thanks for the comment.yes it has already solved I had to patch the whole domain (temperature )

Dear Federico,
Could you please share me the steps or screen shot that how you have patched the whole domain (Temperature) and what value of temperature you taken?

[BHOLU]

Dear Mina,
Could you please share me the steps or screen shot that how you have patched the whole domain (Temperature) and what value of temperature you taken?