[ewz]

Hi，Foamers，
I have tried to revise oscillatingDisplacement to achieve moving boundary which the motion of the boundary was a function of spatial position and time(such as f(x,t)). After I compiled the new oscillatingDynamic, there were some errors. The new oscillatingDynamic and the error were as follows:

void oscillatingDynamicPointPatchVectorField::updateCoeffs()
{
    if (this->updated())
    {
        return;
    }

    const pointPatch& p = this->patch();
    const polyMesh& mesh = this->internalField().mesh()();
    const Time& t = mesh.time();
    
       scalar x = p.x();
    
       Field<vector>::operator=(amplitude_*cos(omega_*t.value()))*sin((x-0.1)*6.28/0.1));
    
    fixedValuePointPatchField<vector>::updateCoeffs();
}

pointPatchFields/derived/oscillatingDynamic/oscillatingDynamicPointPatchVectorField.C: In member function ‘virtual void Foam::oscillatingDynamicPointPatchVectorField::updateCoeffs()’:
pointPatchFields/derived/oscillatingDynamic/oscillatingDynamicPointPatchVectorField.C:112:21: error: ‘const class Foam::pointPatch’ has no member named ‘x’
        scalar x = p.x();
                     ^
pointPatchFields/derived/oscillatingDynamic/oscillatingDynamicPointPatchVectorField.C:114:87: error: invalid operands of types ‘void’ and ‘Foam::doubleScalar {aka double}’ to binary ‘operator*’
 ld<vector>::operator=(amplitude_*cos(omega_*t.value()))*sin((x-0.1)*6.28/0.1));
                                                                             ^

And I really hope that someone can tell me how to define spatial position to achieve the motion of boundary above-mentioned. Thanks a lot.

[ewz]

After times trying，the new pointdisplacement has been successfully compiled, but when I try to do simulation of moving boundary，there are errors as follows：

given patch field does not correspond to the meshPoints. Field size: 0 meshPoints size: 4221

    From function void Foam::pointPatchField<Type>::setInInternalField(Foam::Field<Type2>&, const Foam::Field<Type2>&, const labelList&) const [with Type1 = Foam::Vector<double>; Type = Foam::Vector<double>; Foam::labelList = Foam::List<int>]

FOAM aborting

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::error::abort() at ??:?
#2  void Foam::pointPatchField<Foam::Vector<double> >::setInInternalField<Foam::Vector<double> >(Foam::Field<Foam::Vector<double> >&, Foam::Field<Foam::Vector<double> > const&) const at ??:?
#3  Foam::oscillatingDynamicPointPatchVectorField::updateCoeffs() at ??:?
#4  Foam::displacementLaplacianFvMotionSolver::solve() at ??:?
#5  Foam::motionSolver::newPoints() at ??:?
#6  Foam::dynamicMotionSolverFvMesh::update() at ??:?
#7  ? at ??:?
#8  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#9  ? at ??:?

It seems like the patch field have no meshpoints；
And I don't know how to solve the problem；
I really appreciate it if someone could give me your advices. Thanks a lot.

[ewz]

The error that patch field don't correspond to meshpoints had been solved.
But a new problem was coming as follows:

#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::GAMGSolver::scale(Foam::Field<double>&, Foam::Field<double>&, Foam::lduMatrix const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, unsigned char) const at ??:?
#4  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
#5  Foam::GAMGSolver::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
#6  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
#7  Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
#8  ? at ??:?
#9  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#10  ? at ??:?

[GrpOne123]

Hello, have you solved this problem? I'm having the same issue now.