sixDoFRigidBodyControl.C

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License
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#include "sixDoFRigidBodyControl.H"
#include "Time.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
namespace functionObjects
{
    defineTypeNameAndDebug(sixDoFRigidBodyControl, 0);

    addToRunTimeSelectionTable
    (
        functionObject,
        sixDoFRigidBodyControl,
        dictionary
    );
}
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::functionObjects::sixDoFRigidBodyControl::sixDoFRigidBodyControl
(
    const word& name,
    const Time& runTime,
    const dictionary& dict
)
:
    sixDoFRigidBodyState(name, runTime, dict),
    time_(runTime),
    meanVelocity_(Zero),
    meanAngularVelocity_(Zero)
{
    read(dict);
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::functionObjects::sixDoFRigidBodyControl::~sixDoFRigidBodyControl()
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

bool Foam::functionObjects::sixDoFRigidBodyControl::read(const dictionary& dict)
{
    sixDoFRigidBodyState::read(dict);

    dict.lookup("window") >> w_;
    dict.lookup("convergedVelocity") >> convergedVelocity_;
    dict.lookup("convergedAngularVelocity") >> convergedAngularVelocity_;

    resetName(typeName);

    return true;
}


bool Foam::functionObjects::sixDoFRigidBodyControl::execute()
{
    if (time_.timeIndex() <= time_.startTimeIndex() + 1)
    {
        meanVelocity_ = cmptMag(velocity());
        meanAngularVelocity_ = cmptMag(angularVelocity());
    }
    else
    {
        const scalar dt = time_.deltaTValue();
        const scalar beta = min(dt/w_, 1);

        meanVelocity_ = (1 - beta)*meanVelocity_ + beta*cmptMag(velocity());

        meanAngularVelocity_ =
            (1 - beta)*meanAngularVelocity_ + beta*cmptMag(angularVelocity());
    }

    if
    (
        time_.value() - time_.startTime().value() > w_
     && meanVelocity_ < convergedVelocity_
     && meanAngularVelocity_ < convergedAngularVelocity_
    )
    {
        time_.stopAt(Time::stopAtControl::writeNow);
    }

    return true;
}


// ************************************************************************* //