[askarli]

Hi,

While running the solver, I receive such an error presented below:

Unable to set reference cell for field p
Please supply either pRefCell or pRefPoint


file: /home/sohrab/OpenFOAM/sohrab-7/run/mydraft/case/system/fvSolution.PIMPLE from line 78 to line 81.

Please be informed that I replaced the stl files in a given tutorial with my own stl file and I didn't change anything in the controldict, only the name of the patches.

[piu58]

The pressure needs a reference value, because the flow is equal at every level of p. You may add something like

    pRefCell        0;
    pRefValue       1;

to your solver in fvsolutions, for instance

PIMPLE {
    nOuterCorrectors 100;
    nNonOrthogonalCorrectors 1;
    nCorrectors         2;
    pRefCell        0;
    pRefValue       1;
}

[askarli]

Herlizchen Dank, Uwe!

I inserted those, however, now I'm receiving another error like:

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     | Website:  https://openfoam.org
    \\  /    A nd           | Version:  7
     \\/     M anipulation  |
\*---------------------------------------------------------------------------*/
Build  : 7-3bcbaf946ae9
Exec   : interFoam
Date   : Jul 13 2021
Time   : 10:28:12
Host   : "sohrab-VirtualBox"
PID    : 7284
I/O    : uncollated
Case   : /home/sohrab/OpenFOAM/sohrab-7/run/mydraft/case
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 10)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0

Selecting dynamicFvMesh staticFvMesh

PIMPLE: No convergence criteria found


PIMPLE: Operating solver in transient mode with 1 outer corrector
PIMPLE: Operating solver in PISO mode


Reading field p_rgh

Reading field U

Reading/calculating face flux field phi

Reading transportProperties

Selecting incompressible transport model Newtonian
Selecting incompressible transport model Newtonian
Selecting turbulence model type laminar
Selecting laminar stress model Stokes

Reading g

Reading hRef
Calculating field g.h

No MRF models present

No finite volume options present
#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigFpe::sigHandler(int) at ??:?
#2  ? in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::adjustPhi(Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh>&, Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvPatchField, Foam::volMesh>&) at ??:?
#4  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/interFoam"
#5  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/interFoam"
#6  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#7  ? in "/opt/openfoam7/platforms/linux64GccDPInt32Opt/bin/interFoam"
Floating point exception (core dumped)

[piu58]

From which tutorial did you take your case?