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June 28, 2013, 08:48 |
Maximum Number of Iteration exceeded
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#1 |
New Member
Rahul Soni
Join Date: Feb 2013
Location: IIT Kanpur
Posts: 13
Rep Power: 13 |
Hello Everybody,
I am trying to solve supersonic flow over backstep using rhoCentralFoam and sonicFoambut I m faced with this strange problem : The error is: --> FOAM FATAL ERROR : Maximum number of iterations exceeded From function specieThermo<thermo>::T(scalar f, scalar T0, scalar (specieThermo<thermo>::*F)(const scalar) const, scalar (specieThermo<thermo>::*dFdT)(const scalar) const) const in file /home/liu/OpenFOAM/OpenFOAM-1.2/src/thermophysicalModels/specie/lnInclude/specie ThermoI.H at line 83. FOAM aborting Looking forward to constructive suggestions. Thanks Rahul |
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June 28, 2013, 09:30 |
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#2 |
Senior Member
Join Date: Mar 2013
Location: USA
Posts: 120
Rep Power: 13 |
Hi Rahul,
Are you creating your mesh with some other software and importing it to OpenFoam? |
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June 29, 2013, 02:06 |
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#3 |
New Member
Rahul Soni
Join Date: Feb 2013
Location: IIT Kanpur
Posts: 13
Rep Power: 13 |
Hello kilroy,
Thanks for posting, I am creating mesh in gambit. |
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June 29, 2013, 02:09 |
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#4 |
Senior Member
Join Date: Mar 2013
Location: USA
Posts: 120
Rep Power: 13 |
You may want to look into Dinesh's post below:
http://www.cfd-online.com/Forums/ope...tml#post242848 "This problem came when I was using the number of interval more than 150 or so, in gambit, the exported mesh to OpenFoam was showing that error message i. e ..Maximum number of iterations exceeded..bla bla....... before this it was running upto clock time 5 or 6 and than the error message. If I change the mesh intervals, the clock time of getting that massage had been changing accordingly. When I change the mesh intervals in gambit in 100 it worked i.e upto requried time ( ..which I had set in controlDict ..... Conclusion : change (decrease) the mess interval count in gambit. the exported mesh shall let u find the way...." Hope this helps, Kilroy |
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June 29, 2013, 03:12 |
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#5 |
New Member
Rahul Soni
Join Date: Feb 2013
Location: IIT Kanpur
Posts: 13
Rep Power: 13 |
Hi
I have aleardy referred to this post, however I had no luck. Thanks Rahul |
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June 29, 2013, 03:15 |
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#6 |
Senior Member
Join Date: Mar 2013
Location: USA
Posts: 120
Rep Power: 13 |
Rahul,
Have you ever tried creating your own mesh by OpenFoam's utilities (blockMesh, snappyHexMesh, etc.)? |
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June 29, 2013, 03:48 |
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#7 |
New Member
Rahul Soni
Join Date: Feb 2013
Location: IIT Kanpur
Posts: 13
Rep Power: 13 |
Hi,
I haven't tried that, but there's guy in my lab he works with that and he too faced similar problem. Thanks Rahul |
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