Pleas help me!

nouri67 · December 3, 2010, 02:27

hello dears
My project is the heat transfer system
But the beginning of problem solving give to me an error:
# Divergence detected in AMG solver: temperature -> Increasing relaxation sweeps!
Divergence detected in AMG solver: temperature
What should I do?
What causes it?
Thanks!

bob12 · December 3, 2010, 05:55

hi

the error indicate that the energy equation diverge so you can modify the value of sweep relation factor at solution control under energy term and it can pass from 1 to 0.8 or 0.7. this problem maybe to do with the first iteration and then to vanish. or another cause is the bad setting on your boundary condition so you control another time in particular the thermal factor.

i hope that it usefull

December 3, 2010, 02:27	Pleas help me!	#1
nouri67 New Member Mohammad Join Date: Dec 2010 Posts: 3 Rep Power: 15	hello dears My project is the heat transfer system But the beginning of problem solving give to me an error: # Divergence detected in AMG solver: temperature -> Increasing relaxation sweeps! Divergence detected in AMG solver: temperature What should I do? What causes it? Thanks!

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December 3, 2010, 05:55		#2
bob12 Member Join Date: Oct 2009 Location: Italy Posts: 88 Rep Power: 17	hi the error indicate that the energy equation diverge so you can modify the value of sweep relation factor at solution control under energy term and it can pass from 1 to 0.8 or 0.7. this problem maybe to do with the first iteration and then to vanish. or another cause is the bad setting on your boundary condition so you control another time in particular the thermal factor. i hope that it usefull