[JGadelho]

Hello Niels,
first of all, sorry for the newbie question, but I don't have the time to explore more and I guess it may help in the future other users.

I have OF 2.2.1 with Waves2Foam (probably R1984) working.
I need to use the surfaceElevation function with InterDyMFoam.

I added this code to the ControlDict file:

libs
(
    "libwaves2Foam.so"
    "libwaves2FoamSampling.so"
    "libOpenFOAM.so"
    "libincompressibleRASModels.so"
    "libfvMotionSolvers.so"
    "libforces.so"
    
);

functions
{
    surfaceElevation
    {
        type            surfaceElevation;
        functionObjectLibs ( "libwaves2Foam.so" );
        
        outputControl   timeStep; // Alternative: outputTime
        outputInterval  1;
        
        // Additional output controls in waves2Foam
        // Set outputInterval = 1 and timeStep output control if surfaceSampleDeltaT is used.
        samplingStartTime 0; 
        surfaceSampleDeltaT 0.025; // Only an approximate output interval! No feedback on deltaT in the simulation
        
        setFormat raw;
        interpolationScheme cellPointFace;
        fields (alpha1);
        sets
        (
            gauge0
            {
                type        face;
                axis        y;

                start       (0.6 -0.3 0.005);
                end         (0.6 0.2 0.005);
                nPoints     100;
            }  
        
            
        );
    }
}

The surfaceElevation function writes the first time step, but then the simulation crashes with this error message:

#0  Foam::error::printStack(Foam::Ostream&) at ??:?
#1  Foam::sigSegv::sigHandler(int) at ??:?
#2   in "/lib/x86_64-linux-gnu/libc.so.6"
#3  Foam::valuePointPatchField<double>::updateCoeffs() at ??:?
#4  Foam::GeometricField<double, Foam::pointPatchField, Foam::pointMesh>::GeometricBoundaryField::updateCoeffs() at ??:?
#5  Foam::velocityComponentLaplacianFvMotionSolver::solve() at ??:?
#6  Foam::motionSolver::newPoints() at ??:?
#7  Foam::dynamicMotionSolverFvMesh::update() at ??:?
#8  
 at ??:?
#9  __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#10  
 at ??:?

Am I missing something?

thank you!

[ngj]

Hi Jorge,

It will be quite difficult for anyone running in OF2.2.1 to help you as long as you do not deliver a running case.
Also note, that I do not have the time to resolve this in the code without an actual solution/understanding of the issue.

Kind regards,

Niels

[JGadelho]

Originally Posted by ngj

Hi Jorge,

It will be quite difficult for anyone running in OF2.2.1 to help you as long as you do not deliver a running case.
Also note, that I do not have the time to resolve this in the code without an actual solution/understanding of the issue.

Kind regards,

Niels

Hello Niels,
my initial question was:

if it is possible to couple surfaceElevation with interDyMFoam or waveDyMFoam?

I've made several tests, and surfaceElevation only works on static mesh solvers, like waveFoam or interFoam. I don't know if I'm making something wrong.

Can you suggest an alternative to read the free surface elevation time series on dynamic mesh solvers?

Thank you again,
Jorge.

[ngj]

Hi Jorge,

Yes, I have used the surfaceElevation utility (runTime and post-processing) successfully on moving meshes in 1.6-ext. It should be noted that my motion is vertical, i.e. no change of the location of the grid lines in the hortizontal direction.

Good luck,

Niels

[wxtwalkee]

I am working on the piston wave generation by modifying the oscillatingDisplacement boundary condition in OF-2.2.0 using interDyMFoam. I want to add the surfaceElevation function into the controlDict in order to get the run-time surface elevation. I do it as the tutorial case waveflume. The error reports that "surfaceElevation is not valid functionObject". But when I run the case waveflume by ./Allrun, it works well. Why? Does the surfaceElevation have some problems with the interDyMFoam solver in OF-2.2.0?

[wxtwalkee]

Hi Jorge,
I encounter the same problem with you, I want to know whether you have figure it out and i would be very grateful if you can offer some suggestions.

Thank you
wxtwalkee