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Search: Posts Made By: renyun0511
Forum: OpenFOAM Running, Solving & CFD June 26, 2011, 21:42
Replies: 23
Views: 6,277
Posted By renyun0511
hi aldo, From the picture of your pump model...

hi aldo,
From the picture of your pump model and the setup of your case, i guess may your problem is that you ingored the setup of GGI. The rotating impeller and stationary volute need to be coupled...
Forum: OpenFOAM Running, Solving & CFD November 26, 2009, 22:09
Replies: 23
Views: 6,277
Posted By renyun0511
Smile Thank you very much Stawrogin, i can continue...

Thank you very much Stawrogin,
i can continue the calculation after adopting your advice.As you known,the problem has puzzled me since two months ago.it is indeed a good news to me that it's not...
Forum: OpenFOAM Running, Solving & CFD November 26, 2009, 04:55
Replies: 23
Views: 6,277
Posted By renyun0511
http://www.cfd-online.com/Forums/C:\Documents and...

http://www.cfd-online.com/Forums/C:\Documents and Settings\Administrator\桌面\QQ截图未命名.pnghello Gijs,
the epsilon and k initial values are:
FoamFile
{
version 2.0;
format ascii;
class...
Forum: OpenFOAM Running, Solving & CFD November 25, 2009, 23:30
Replies: 23
Views: 6,277
Posted By renyun0511
Hello Doctor Zhang wei, the last iteration is...

Hello Doctor Zhang wei,
the last iteration is as follows:
Time = 16

smoothSolver: Solving for Ux, Initial residual = 0.0146841, Final residual = 0.00071266, No Iterations 2
smoothSolver: ...
Forum: OpenFOAM Running, Solving & CFD November 25, 2009, 08:37
Replies: 23
Views: 6,277
Posted By renyun0511
thank you Gijs, after i change the relaxation...

thank you Gijs,
after i change the relaxation factor 0.25 for turbulence properties.0.5 for velocity,
0.1 for pressure,and it iterate more steps than before.but it divergenced at last ,also due to...
Forum: OpenFOAM Running, Solving & CFD November 24, 2009, 10:07
Replies: 23
Views: 6,277
Posted By renyun0511
fvschemes and fvsolutions in MRFSimpleFoam

hi all,
i use MRFSimplefoam to study a centrifugal pump impeller study.the problem is :after several steps of iterations,i have a Floating exception error,due to the fast increase in epsilon and k...
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