Learning Forum

[Christian Onuoha]

for my model, I am using Energy equation and Viscous(Laminar)
- Material: fluid(air) solid(aluminium only one available)
-Inlet(ac)
-outlet(working with simulation extrapolation of pressure on window1&2, door, and extractor_fan)
-wall(adding temperature value on kitchen equipments without adding the heat generation rate)
- Initilization is Hybird
-iterations 500

the aim of the simulation is to simulate the ventilation of the kitchen space based on data gotten.

[Christian Onuoha]

Heyy, I need help. My simulation is not converging and its giving me errors.

Error:
Experiencing convergence difficulties - temporarily relaxing and trying again...

Experiencing convergence difficulties - temporarily relaxing and trying again...

Experiencing convergence difficulties - temporarily relaxing and trying again...

Experiencing convergence difficulties - temporarily relaxing and trying again...
Stabilizing pressure coupled to enhance linear solver robustness.
Stabilizing pressure coupled using GMRES to enhance linear solver robustness.

Experiencing convergence difficulties - temporarily relaxing and trying again...

Divergence detected in AMG solver: pressure coupled Stabilizing temperature to enhance linear solver robustness.
temperature limited to 1.000000… Read more

… Read more

[Rob]

I'd start by checking the mesh - the mixed colouring red/grey on the walls(?) is a clue that something isn't right; that and it looks like there may be two sets of tet cells on that surface.