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Search: Posts Made By: yhaomin2007
Forum: OpenFOAM Running, Solving & CFD August 20, 2013, 16:09
Replies: 23
Views: 6,594
Posted By yhaomin2007
when relaxation factor apply to equations, it...

when relaxation factor apply to equations, it increase the central coefficient of the matrix, and make simulation stable.
Forum: OpenFOAM Running, Solving & CFD August 20, 2013, 12:38
Replies: 23
Views: 6,594
Posted By yhaomin2007
yes, pretty much.

yes, pretty much.
Forum: OpenFOAM Running, Solving & CFD August 20, 2013, 12:10
Replies: 23
Views: 6,594
Posted By yhaomin2007
the simulation will blows up, produce some...

the simulation will blows up, produce some extreme large number(NAN), if the simulation is not stable.~~
You can just try some lower URF to see it the simulation do not stop in the middle.
Forum: OpenFOAM Running, Solving & CFD August 20, 2013, 11:45
Replies: 23
Views: 6,594
Posted By yhaomin2007
I assume you are doing steady state problem. This...

I assume you are doing steady state problem. This URF should decrease to insure stability. But lower URF will require more steps to get to your final answer.
Forum: OpenFOAM Running, Solving & CFD December 25, 2012, 23:35
Replies: 23
Views: 6,594
Posted By yhaomin2007
I think you can change the relaxation factor for...

I think you can change the relaxation factor for k and epsilon equation
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