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Error in implementing probe-post processing utility

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Old   June 15, 2015, 05:41
Default Error in implementing probe-post processing utility
  #1
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baran
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Hi,
Greeting all!!!
I want to implement "probe" to get temperature variation with change in time in chtMultiRegionFoam tutorial (multiRegionHeater) of OpenFOAM-2.4.
So as per incompressible/pisoFoam/pitzDaily/system/controlDict file i have made following changes.. in my case..
Quote:
functions
{
heater
{
type probes;
functionObjectLibs ("libsampling.so");
enabled true;
outputControl timeStep;
outputInterval 1;

fields
(
T
);
probeLocations
(

(0 0 0)

);

}
}
But some how it is showing following kind of error....

Quote:
Selecting radiationModel opaqueSolid
Selecting absorptionEmissionModel constantAbsorptionEmission
Selecting scatterModel none
Selecting sootModel none
Adding fvOptions

No finite volume options present

Region: bottomWater Courant Number mean: 0.00017208904 max: 0.00082499996
Region: topAir Courant Number mean: 0.015 max: 0.015000002
Region: heater Diffusion Number mean: 5.9582983e-08 max: 7.1134787e-08
Region: leftSolid Diffusion Number mean: 5.9429061e-08 max: 7.1134787e-08
Region: rightSolid Diffusion Number mean: 5.9429061e-08 max: 7.1134787e-08


--> FOAM FATAL ERROR:

request for objectRegistry region0 from objectRegistry probe_check failed
available objects of type objectRegistry are

5
(
rightSolid
bottomWater
heater
topAir
leftSolid
)


From function objectRegistry::lookupObject<Type>(const word&) const
in file /home/bg8743/OpenFOAM/OpenFOAM-2.4.0/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 198.

FOAM aborting

#0 Foam::error:rintStack(Foam::Ostream&) in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#1 Foam::error::abort() in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#2 Foam:bjectRegistry const& Foam:bjectRegistry::lookupObject<Foam:bjectReg istry>(Foam::word const&) const in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libsampling.so"
#3 Foam::OutputFilterFunctionObject<Foam:robes>::al locateFilter() in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libsampling.so"
#4 Foam::OutputFilterFunctionObject<Foam:robes>::st art() in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libsampling.so"
#5 Foam::functionObjectList::read() in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#6 Foam::functionObjectList::adjustTimeStep() in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#7 ? in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/bin/chtMultiRegionFoam"
#8 __libc_start_main in "/lib64/libc.so.6"
#9 ? in "/home/bg8743/OpenFOAM/OpenFOAM-2.4.0/platforms/linux64GccDPOpt/bin/chtMultiRegionFoam"
Aborted
Can you kindly specify what should I specify in this control Dict file to use this probe properly??

Thanks & regards,
baran
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Old   June 16, 2015, 01:59
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  #2
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Fabian Schlegel
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This should be some mesh issue or something with your probe location. OpenFoam tells your where the problem is:

-> FOAM FATAL ERROR:

request for objectRegistry region0 from objectRegistry probe_check failed
available objects of type objectRegistry are

5
(
rightSolid
bottomWater
heater
topAir
leftSolid
)

You should check if your probe locations is within the specified region and if you have some misspellings in your dictionary.

Best regards
Fabian
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Old   June 16, 2015, 04:15
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baran
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Greeting all!!!

@fabian...thanks for your reply...

I have cross checks the controlDict file...
1. There is no spelling error as per tutorial case...
2. I have taken different points from polyMesh directory to check it. But same error is coming...

Regards,
Baran
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Old   June 16, 2015, 05:24
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Fabian Schlegel
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The code for your probes seems to be outdated (I use OF 2.4.x). Have a look, e.g., at multiphase/interDyMFoam/ras/sloshingTank2D/system/controlDict how probes are used.
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Old   June 16, 2015, 06:39
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baran
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I am also using openFoam-2.4.
I have taken the command from
tutorial/incompressible/pisoFoam/pitzDaily/system/controlDict
It is also showing the same error... according to your suggestion

Mostly some other issue is there which I am missing...

Regards,
Baran
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Old   June 16, 2015, 07:27
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Fabian Schlegel
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I checked it and I am able to reproduce your error for the multiRegionHeater tutorial case. However, I do not have a clue at the moment, it seems to be related to the mesh and the various regions. To register the probe OF tries to access region0, which is not present. I think you have to dive into the code to fix this issue.

Best regards
Fabian
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Old   June 16, 2015, 10:14
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Fabian Schlegel
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I found your problem. You have to add the region in your probe function, as I have done below:

Code:
    probes
    {
        type            probes;
        functionObjectLibs ("libsampling.so");
        enabled         true;
        outputControl   timeStep;
        outputInterval  1;

	region heater;

        fields
        (
            p
        );

        probeLocations
        (
            ( 0.0254 0.0253 0 )
            ( 0.0508 0.0253 0 )
            ( 0.0762 0.0253 0 )
            ( 0.1016 0.0253 0 )
            ( 0.127 0.0253 0 )
            ( 0.1524 0.0253 0 )
            ( 0.1778 0.0253 0 )
        );
Best regards
Fabian
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Old   June 17, 2015, 02:18
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baran
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Greeting all!!
@Fabian thanks a lot for your reply..it works in this way.....
Some observation I have seen as follows...
1. If we enter different region for probe location then it will give some garbage value....but not going to show any error...

But i have another doubt....If we want to probe in two different fields then how to do this using probe??
I am trying in this way... but it is only reading last entry region.that means for this case it only log data for topAir....
Code:
    probes 
    {    
        type            probes;
        functionObjectLibs ("libsampling.so");
        enabled         true;
        outputControl   outputTime;  //timeStep;
        outputInterval  1;
    region        heater;


    probeLocations
        (

      (-0.013333333 0 -0.05)
      (-0.0066666667 0 -0.05)
      (0 0 -0.05)
      (0.0066666667 0 -0.05)
      (0.013333333 0 -0.05)
      (-0.013333333 0.008 -0.05)
      (-0.0066666667 0.008 -0.05)
      (0 0.008 -0.05)
     );

    fields
    (
    T
    );


    }

      probes
    {
        type            probes;
        functionObjectLibs ("libsampling.so");
    enabled        true;
        outputControl   outputTime;
    outputInterval  1;

    region       topAir;
        probeLocations
        (
(-0.1 0.008 -0.05)
(-0.093333333 0.008 -0.05)
(-0.086666667 0.008 -0.05)
(-0.08 0.008 -0.05)
(-0.073333333 0.008 -0.05)
(-0.066666667 0.008 -0.05)
(-0.06 0.008 -0.05)
(-0.053333333 0.008 -0.05)
(-0.046666667 0.008 -0.05)
(-0.04 0.008 -0.05)
(-0.033333333 0.008 -0.05)
(-0.026666667 0.008 -0.05)
(-0.02 0.008 -0.05)

        );

        fields
        (
            T
        );
     }
Code:
    probes 
    {    
        type            probes;
        functionObjectLibs ("libsampling.so");
        enabled         true;
        outputControl   outputTime;  //timeStep;
        outputInterval  1;
    region        heater;

    probeLocations
        (

      (-0.013333333 0 -0.05)
      (-0.0066666667 0 -0.05)
      (0 0 -0.05)
      (0.0066666667 0 -0.05)
      (0.013333333 0 -0.05)
      (-0.013333333 0.008 -0.05)
      (-0.0066666667 0.008 -0.05)
      (0 0.008 -0.05)
   &nbsp;);

    region       topAir;
      probeLocations
        (
(-0.1 0.008 -0.05)
(-0.093333333 0.008 -0.05)
(-0.086666667 0.008 -0.05)
(-0.08 0.008 -0.05)
(-0.073333333 0.008 -0.05)
(-0.066666667 0.008 -0.05)
(-0.06 0.008 -0.05)
(-0.053333333 0.008 -0.05)
(-0.046666667 0.008 -0.05)
(-0.04 0.008 -0.05)
(-0.033333333 0.008 -0.05)
(-0.026666667 0.008 -0.05)
(-0.02 0.008 -0.05)

        );

        fields
        (
            T
        );
     }
Can anyone have any idea for this...??

Regards,
Baran

Last edited by wyldckat; June 17, 2015 at 15:27. Reason: Changed [QUOTE][/QUOTE] to [CODE][/CODE]
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Old   June 17, 2015, 15:29
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Bruno Santos
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wyldckat is just really nicewyldckat is just really nicewyldckat is just really nicewyldckat is just really nice
Quick answer: You are using the same name for each named block:
Code:
probes 
{
...
}

probes 
{
...
}
When you should use different names, for example:
Code:
heaterProbes
{
...
}

topAirProbes 
{
...
}
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Old   June 18, 2015, 05:30
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  #10
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baran
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Greeting All!!!
@bruno...thanks a lot for your reply.....

Yea I have done some mistakes here....right now it is working properly...

Regards,
Baran
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