CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Pre-Processing

pimpleDyMFoam - GGI - dynamicMeshDict

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 29, 2013, 09:23
Default pimpleDyMFoam - GGI - dynamicMeshDict
  #1
Member
 
Dogan
Join Date: Nov 2012
Location: Bochum/Germany
Posts: 42
Rep Power: 13
dogan is on a distinguished road
Hi everyone,
I am working on a centrifugal pump simulation. I already managed to run it with MRFSimpleFoam (steady state), and now i need to run it transient. In the pump mesh, i have the rotating part (rotor) impeller, and the stationary part(stator) spiral and the ggi faces between rotor and stator.
I took a look at the propeller tutorial, and tried to implement the necessary changes in the pump, but i am getting an floating point exception. I took the first time step from my steady state solution. The error message is as followed:

Time = 1.0000023


From function void GGIInterpolation<MasterPatch, SlavePatch>::rescaleWeightingFactors() const
in file /opt/net/OpenFOAM/OpenFOAM-1.6-ext/src/OpenFOAM/lnInclude/GGIInterpolationWeights.C at line 544
Uncovered faces found. On master: 0 on slave: 112
smoothSolver: Solving for Ux, Initial residual = 0.849927, Final residual = 1.48419e+90, No Iterations 1000
smoothSolver: Solving for Uy, Initial residual = 0.857573, Final residual = 6.4517e+90, No Iterations 1000
smoothSolver: Solving for Uz, Initial residual = 0.834989, Final residual = 2.61278e+90, No Iterations 1000
GAMG: Solving for p, Initial residual = 1, Final residual = 0.00981603, No Iterations 100
time step continuity errors : sum local = 1.97147e+87, global = -3.51143e+86, cumulative = -3.51143e+86
GAMG: Solving for p, Initial residual = 0.057575, Final residual = 0.00055621, No Iterations 72
time step continuity errors : sum local = 3.02876e+87, global = 5.12138e+86, cumulative = 1.60995e+86
GAMG: Solving for p, Initial residual = 0.248958, Final residual = 9.762e-07, No Iterations 625
time step continuity errors : sum local = 1.17812e+84, global = 4.43482e+83, cumulative = 1.61438e+86
smoothSolver: Solving for omega, Initial residual = 1, Final residual = 0.0922146, No Iterations 5
smoothSolver: Solving for k, Initial residual = 0.0599044, Final residual = 0.00342165, No Iterations 2
ExecutionTime = 186.33 s ClockTime = 186 s

Courant Number mean: 5.53324e+89 max: 5.88102e+92 velocity magnitude: 1.70455e+97
Gleitkomma-Ausnahme
gulacd2k@ws07:~/OpenFOAM/gulacd2k-2.1.x/02_deneme/transient/GGI/Transient_tests/test_1> ^C
gulacd2k@ws07:~/OpenFOAM/gulacd2k-2.1.x/02_deneme/transient/GGI/Transient_tests/test_1>



I am also not sure about the settings in my dynamicMeshDict file. Can anyone give me a hint how to set my dynamicMeshDict file?

thanks in advance
dogan is offline   Reply With Quote

Old   April 30, 2013, 14:30
Default
  #2
Member
 
Dogan
Join Date: Nov 2012
Location: Bochum/Germany
Posts: 42
Rep Power: 13
dogan is on a distinguished road
here my some of the settings:
Attached Files
File Type: gz p.tar.gz (551 Bytes, 6 views)
File Type: gz U.tar.gz (595 Bytes, 11 views)
File Type: gz omega.tar.gz (596 Bytes, 5 views)
File Type: gz nut.tar.gz (586 Bytes, 4 views)
File Type: gz k.tar.gz (579 Bytes, 4 views)
dogan is offline   Reply With Quote

Old   April 30, 2013, 14:31
Default
  #3
Member
 
Dogan
Join Date: Nov 2012
Location: Bochum/Germany
Posts: 42
Rep Power: 13
dogan is on a distinguished road
and the others
Attached Files
File Type: gz dynamicMeshDict.tar.gz (834 Bytes, 66 views)
File Type: gz boundary.tar.gz (727 Bytes, 11 views)
File Type: gz controlDict.tar.gz (997 Bytes, 11 views)
File Type: gz fvSchemes.tar.gz (677 Bytes, 12 views)
File Type: gz fvSolution.tar.gz (821 Bytes, 11 views)
dogan is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Create a GeometricField of a given type on given patch? philippose OpenFOAM Programming & Development 4 August 12, 2013 12:41
Difference between ggi and overlapGgi? GGI Tips and Tricks? philippose OpenFOAM Running, Solving & CFD 7 January 16, 2013 09:40
GGI dynamicMeshDict keyword 'direction' lordvon OpenFOAM Running, Solving & CFD 0 April 14, 2012 20:31
Ggi Question JulytoNovember OpenFOAM Running, Solving & CFD 0 March 19, 2012 12:09
Increasing Iter. number of GAMG in pimpleDyMFoam with GGI waku2005 OpenFOAM 0 July 3, 2011 20:21


All times are GMT -4. The time now is 13:16.