Define END 15.

1 0 GfsAdvection GfsBox GfsGEdge {} {
    Refine LEVEL
    VariableTracerVOFHeight T
    InitFraction T (0.2*0.2 - ((x + 0.2)*(x + 0.2) + (y + .236338)*(y + .236338)))
    Time { end = END dtmax = 0.1 }
    VariableStreamFunction { istep = 1 } Psi (1.5*sin(2.*M_PI*t/END)*sin((x + 0.5)*M_PI)*sin((y + 0.5)*M_PI)/M_PI)

    VariableCurvature K T
    AdaptFunction { istep = 1 } {
    	cmax = 0.1 maxlevel = LEVEL
    	cfactor = 2. 
    } (T > 0. && T < 1.)*dL*fabs(K)
    AdaptThickness { istep = 1 } { maxlevel = LEVEL } T

    OutputSimulation { istep = 10 } stdout
    GModule gfsview
    OutputView { step = 3.75 } interface-LEVEL { format = Gnuplot } reversed.gfv
    Variable T0
    InitFraction { start = end } T0 (0.2*0.2 - ((x + 0.2)*(x + 0.2) + (y + .236338)*(y + .236338)))
    OutputErrorNorm { start = end } stderr { v = T } { s = T0 }
}
GfsBox {}