Converging process

e.abedini · May 26, 2015, 08:56

hi everyone
which one is more important in converging process? residuals or stability of residuals?
for example our continuity residual is considered 10e-6, after some iterations , the residual reaches to 10e-6. Is this residual enough for stopping process or we have to continue iterations to reach stability?

edoan · May 26, 2015, 15:17

residuals monitor the change between sucessive iterations. when the residual is very small it means your solution is not changing, its a mathematical convergence but to deterime if you have obtained a correct physical solution you need to look at more information.

May 26, 2015, 08:56	Converging process	#1
e.abedini New Member hosna Join Date: May 2015 Posts: 5 Rep Power: 10	hi everyone which one is more important in converging process? residuals or stability of residuals? for example our continuity residual is considered 10e-6, after some iterations , the residual reaches to 10e-6. Is this residual enough for stopping process or we have to continue iterations to reach stability?

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May 26, 2015, 15:17		#2
edoan Member Ethan Doan Join Date: Oct 2012 Location: Canada Posts: 90 Rep Power: 13	residuals monitor the change between sucessive iterations. when the residual is very small it means your solution is not changing, its a mathematical convergence but to deterime if you have obtained a correct physical solution you need to look at more information.