// -*- C++ -*-

tracer0
{
    type  scalarTransport;
    libs  (solverFunctionObjects);
    log   off;

    resetOnStartUp  false;
    writeControl    writeTime;
    writeInterval   1;
    field           tracer0;
    D               0.001;

    fvOptions
    {
        source1
        {
            type            scalarSemiImplicitSource;

            volumeMode      specific;

            selectionMode   geometric;

            selection
            {
                cylinder
                {
                    source  cylinder;
                    point1  (0.050 0 -1);
                    point2  (0.050 0  1);
                    radius  0.01;
                }
            }

            sources
            {
                tracer0
                {
                    explicit constant 0.01;
                }
            }
        }

        source2
        {
            type            scalarSemiImplicitSource;

            volumeMode      specific;

            selectionMode   all;

            sources
            {
                tracer0
                {
                    explicit
                    {
                        type       exprField;

                        functions<scalar>
                        {
                            square
                            {
                                type square;
                                scale 0.0025;
                                level 0.0025;
                                frequency 10;
                            }
                        }

                        expression
                        #{
                            (hypot(pos().x() + 0.025, pos().y()) < 0.01)
                          ? fn:square(time())
                          : 0
                        #};
                    }
                }
            }
        }
    }
}


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