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simpleSRFfoam : request for volVectorField U

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Old   October 19, 2010, 16:27
Default simpleSRFfoam : request for volVectorField U
  #1
jmf
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J Michel
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Location: Orleans - France
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Hi everybody

I try to model a rotor in an open stream, using simpleSRFoam.

The solvers returns :
Code:
--> FOAM FATAL ERROR: 
    request for volVectorField U from objectRegistry region0 failed
    available objects of type volVectorField are
1
(
Urel
)
    From function objectRegistry::lookupObject<Type>(const word&) const
    in file /home/nous/OpenFOAM/OpenFOAM-1.7.1/src/OpenFOAM/lnInclude/objectRegistryTemplates.C at line 139.
In folder /0, there is a file Urel as follow :
Code:
internalField   uniform (10 0 0);
boundaryField
{
    inlet           
    {
        type            fixedValue;
        inletValue      uniform (10 0 0);
        relative        no;
        value           uniform (10 0 0);
    }
    outlet          
    {
        type            freestream;
        freestreamValue uniform (10 0 0);
    }
    rotor       
    {
        type            SRFVelocity;
        inletValue      uniform (0 0 0);
        relative        yes;
        value           uniform (0 0 0);
    }
    cyclic
    {
        type            cyclic;
    }
}
In /system, fvSolution contains :
Code:
    Urel
    {
        solver          PBiCG;
        preconditioner  DILU;
        tolerance       1e-05;
        relTol          0.1;
    }
I'm sticked. Who might help me ?

Thanks in advance

Jean-Michel
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Old   October 23, 2010, 13:02
Default [solved] simpleSRFfoam : request for volVectorField U
  #2
jmf
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J Michel
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Hello

My problem is solved : freeStream BC seems not to be compatible with simpleSRFFoam.

fixedValue fixed the error

Best wishes

Jean-Michel
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Old   October 29, 2010, 20:11
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  #3
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M. Montero
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Hi,

I have problems with SRFsimpleFoam. My mesh is 3D, it is a 120 sector with cyclic condition. Continuity errors are increasing at each iteration.

Could you share some information about bcs? Inlet, outlet, cyclic, wall and exterior fardfield?

Thanks in advance
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Old   July 28, 2015, 15:16
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Werner
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Hi,

i'm experiencing the same issue with the request for volVectorField U as JMF. I'm following your advice to change the boundary conditions where there is freestream (with an exterior flow) from SRFFreestream to fixedValue and to zeroGradient and it still doesn't work.

I think that the zeroGradient boundary condition is better since I don't have a wall in here. For the fixedValue BC's I should give the walls the same speed of the air, which must be very difficult.

I think I might have to mention the volVectorField U somewhere since I eventually would want to have such vector field as a result. Are you sure that the solution to this problem relies only in the definitions of the boundary conditions ?

I will attach the versions of the Urel that I have created. I have followed the SFRSimpleFoam/Mixer to set up the fvSolution and fvSchemes. I attach them here as well.

I would apreciate any help.

Regards,
Werner
Attached Files
File Type: txt Urel.txt (1.7 KB, 0 views)
File Type: txt UrelfixedValue.txt (2.0 KB, 0 views)
File Type: txt UrelzeroGradient.txt (1.6 KB, 0 views)
File Type: txt fvSchemes.txt (1.6 KB, 0 views)
File Type: txt fvSolution.txt (1.5 KB, 0 views)
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