[subhsngh]

i am trying to get bc for my simulation using potential flow and this message is displayed on terminal


Reading field U


Calculating potential flow
Using dynamicCode for functionObject difference at line 53 in "/home/subh/OpenFOAM/subh-2.2.0/run/cylinder/system/controlDict.functions.difference"


--> FOAM FATAL ERROR:

gradientInternalCoeffs cannot be called for a calculatedFvPatchField
on patch ceiling of field p in file "/home/subh/OpenFOAM/subh-2.2.0/run/cylinder/0/p"
You are probably trying to solve for a field with a default boundary condition.

From function calculatedFvPatchField<Type>::gradientInternalCoef fs() const
in file fields/fvPatchFields/basic/calculated/calculatedFvPatchField.C at line 199.

FOAM exiting


i am also sending my casehttps://www.dropbox.com/s/x9n9o2neim...ylinder.tar.gz

[wyldckat]

Greetings Subhendu,

I got your private message some time ago, but only now did I finally managed to try to look into your case... but the link is broken, so there isn't much I can do

Best regards,
Bruno

[subhsngh]

i am posting my case again i deleted it by mistake
https://www.dropbox.com/s/x9n9o2neim...ylinder.tar.gz

i want to use these boundary conditions in buoyantsimpleFoam to study heat transfer properties
how can i use them

[wyldckat]

Hi Subhendu,

I finally managed to look into this.
I've got a feeling that you provided the link for the wrong case, because I cannot get the same error you're getting.

What I've done is:

1. Renamed the folder "0" to "0.org".
2. Ran:
   

   ./Allclean
   ./Allrun

I then got an error shown in the file "log.potentialFoam", for which I show the first part of the error:

Looking up field U

Reading inlet velocity  uInfX

#0  Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#1  Foam::sigSegv::sigHandler(int) in "/opt/openfoam220/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#2   in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::errorFunctionObject::write() at system/controlDict.functions.difference:68

I think this is because there is no obstacle in your mesh. So, if I comment out the complete "functions" block inside the file "system/controlDict", then potentialFoam runs without problems.


Best regards,
Bruno