RhoTurbFoam max number of iterations

jia_kok · February 11, 2009, 23:02

Hi, I'm using rhoTurbFoam to solve for supersonic flow. The solver works fine for mach number 1.0, but i get the error message that the max number of iterations is reached verytime i do something more than mach 1.0. I've attached the error message below.

--> FOAM FATAL ERROR : Maximum number of iterations exceeded#0 Foam::error::printStack(Foam:

stream&) in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libOpenFOAM.so"
#1 Foam::error::abort() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libOpenFOAM.so"
#2 Foam::hThermo<foam::puremixture<foam::consttranspo rt<foam::speciethermo<foam::hc onstthermo<foam::perfectgas> > > > >::calculate() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libbasicThermophysica lModels.so"
#3 Foam::hThermo<foam::puremixture<foam::consttranspo rt<foam::speciethermo<foam::hc onstthermo<foam::perfectgas> > > > >::correct() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libbasicThermophysica lModels.so"
#4 main in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/applications/bin/linux64GccDPOpt/rhoTurbF oam"
#5 __libc_start_main in "/lib64/libc.so.6"
#6 Foam::regIOobject::readIfModified() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/applications/bin/linux64GccDPOpt/rhoTurbF oam"

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/dm2/henry/OpenFOAM/OpenFOAM-1.4.1/src/thermophysicalModels/specie/lnInclud e/specieThermoI.H at line 83.

FOAM aborting

Cheers

Jia

haghajani · March 12, 2009, 05:21

Hia Jia,
do you found the trick?
I faced this error in dieselFoam,

regards,
Hamed

kieranwood85 · March 13, 2009, 05:43

Hi,

I am also getting this message when running rhoCentralFoam. My case has both subsonic and supersonic flow and seems to work fine but then always crashes with this error after a while.

Does any one know what it means?

Thanks
Kieran

mehulkumar · April 17, 2009, 09:57

Hi..friends.
I am solving one case using rhoTurbFoam but after few iteration it stops with the same error report as mentioned above.
I am not getting why this Err means.
What I understood is there may be sudden Temp raise found this is causing Err.
I am not sure.
I tried to verify BCs and discretization schemes also but got no idea about Err cause.
Pls..come forward and help to understand it.

Thanks
Mehulkumar

shantha · June 29, 2009, 05:43

hello friends,
i am facing some issues after 2 iter, please find attached log file
Maximum number of iteration exceeded#0 Foam ::error:

rintStack(Foam::Ostream&) error.
please help me any body, i found error after 2 iterations

shantha · June 29, 2009, 05:48

hi..jia_kok

Did you fix that issue? if it how did you do it?

i am facing same problem, please help me on the same

Rachel · July 3, 2009, 05:03

MOst probably your BC are wrong.
Look at rho !
Its too high !
That is leading to problem with time step continuity...
recheck your BC and how do you initialize your domain?

February 11, 2009, 23:02	Hi, I'm using rhoTurbFoam to s	#1
jia_kok New Member Jia Ming Kok Join Date: Mar 2009 Posts: 2 Rep Power: 0	Hi, I'm using rhoTurbFoam to solve for supersonic flow. The solver works fine for mach number 1.0, but i get the error message that the max number of iterations is reached verytime i do something more than mach 1.0. I've attached the error message below. --> FOAM FATAL ERROR : Maximum number of iterations exceeded#0 Foam::error::printStack(Foam:stream&) in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libOpenFOAM.so" #1 Foam::error::abort() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libOpenFOAM.so" #2 Foam::hThermo<foam::puremixture<foam::consttranspo rt<foam::speciethermo<foam::hc onstthermo<foam::perfectgas> > > > >::calculate() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libbasicThermophysica lModels.so" #3 Foam::hThermo<foam::puremixture<foam::consttranspo rt<foam::speciethermo<foam::hc onstthermo<foam::perfectgas> > > > >::correct() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/lib/linux64GccDPOpt/libbasicThermophysica lModels.so" #4 main in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/applications/bin/linux64GccDPOpt/rhoTurbF oam" #5 __libc_start_main in "/lib64/libc.so.6" #6 Foam::regIOobject::readIfModified() in "/home/jiaming/OpenFOAM/OpenFOAM-1.4.1/applications/bin/linux64GccDPOpt/rhoTurbF oam" 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/dm2/henry/OpenFOAM/OpenFOAM-1.4.1/src/thermophysicalModels/specie/lnInclud e/specieThermoI.H at line 83. FOAM aborting Cheers Jia

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March 12, 2009, 05:21	Hia Jia, do you found the tri	#2
haghajani Member Hamed Aghajani Join Date: Mar 2009 Location: London, UK Posts: 77 Rep Power: 17	Hia Jia, do you found the trick? I faced this error in dieselFoam, regards, Hamed

March 13, 2009, 05:43	Hi, I am also getting this	#3
kieranwood85 New Member Kieran Wood Join Date: Mar 2009 Posts: 7 Rep Power: 17	Hi, I am also getting this message when running rhoCentralFoam. My case has both subsonic and supersonic flow and seems to work fine but then always crashes with this error after a while. Does any one know what it means? Thanks Kieran

April 17, 2009, 09:57	Same Err	#4
mehulkumar Member Join Date: Mar 2009 Posts: 41 Rep Power: 17	Hi..friends. I am solving one case using rhoTurbFoam but after few iteration it stops with the same error report as mentioned above. I am not getting why this Err means. What I understood is there may be sudden Temp raise found this is causing Err. I am not sure. I tried to verify BCs and discretization schemes also but got no idea about Err cause. Pls..come forward and help to understand it. Thanks Mehulkumar

June 29, 2009, 05:48		#6
shantha New Member shanthakumar Join Date: Jun 2009 Posts: 2 Rep Power: 0	hi..jia_kok Did you fix that issue? if it how did you do it? i am facing same problem, please help me on the same

July 3, 2009, 05:03		#7
Rachel Member Rachel Vogl Join Date: Jun 2009 Posts: 48 Rep Power: 16	MOst probably your BC are wrong. Look at rho ! Its too high ! That is leading to problem with time step continuity... recheck your BC and how do you initialize your domain?