[thibogoddef]

Hello for my flow over an airfoil simulation i get the following error:

Reading field U
-->FOAM FATAL IO erro:
Cannot find patchField entry for airfoil....

My boundry file looks like this:

(
outlet
{
type outlet;
nFaces 132;
startFace 28303;
}
inlet
{
type inlet;
nFaces 216;
startFace 28435;
}
airfoil
{
type wall;
inGroups 1(wall);
nFaces 70;
startFace 28651;
}
frontAndBackPlanes
{
type empty;
inGroups 1(empty);
nFaces 28512;
startFace 28721;
}
)

And my U file (where I guess there is a problem):

dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{
outlet
{
type zeroGradient;
}

inlet
{
type fixedValue;
value uniform (19 2 0)
}

airfoil
{
type noSlip;
}

frontAndBackPlanes
{
type empty;
}
}

Does anyone know how to solve this error?
Kind regards TG

[Yann]

Hi Thibo,

It seems you are missing a semicolon on the inlet BC:

inlet
{
    type fixedValue;
    value uniform (19 2 0);
}

Regards,
Yann

[thibogoddef]

Hi Yann

Thanks for the quick reply

After this I get the same cannot find patchField entry for airfoil, but now after it says:
Reading/calculating face flux field phi
...
Selecting RAS turbulence model SpalartAllmaras
Cannot find patchField entry for airfoil

A little further it mentions the nut file, is there anything wrong with this one?

Nut file:
dimensions [0 2 -1 0 0 0 0];

internalField uniform 0.14;

boundaryField
{
outlet
{
type zeroGradient;
}

inlet
{
type fixedValue;
value uniform 0.14;
}

airFoil
{
type nutUSpaldingWallFunction;
value uniform 0;
}

frontAndBackPlanes
{
type empty;
}
}


Nut tilda file:
dimensions [0 2 -1 0 0 0 0];

internalField uniform 0.14;

boundaryField
{
outlet
{
type zeroGradient;
}

inlet
{
type fixedValue;
value uniform 0.14;
}

airfoil
{
type fixedValue;
value uniform 0;
}

frontAndBackPlanes
{
type empty;
}
}

I checked the semicolons but can't find any other fault, can you help me with this aswell?

Kind regards TG

[Yann]

Yes, you have a typo in the nut file: airFoil instead of airfoil.

These are typical and pretty straightforward errors. Every time you get it, it means there is something wrong in the file: missing or extra semicolon or bracket, wrong name, etc...

Cheers,
Yann

[thibogoddef]

I guess you can see I'm just getting started with OpenFOAM.

Thanks again Yann for the reply!

Kind regads TG