2 1 GfsSimulation GfsBox GfsGEdge { 
#     x = -0.5
    x = -0.38
} {
#    Refine (x > 0 && y > 0 ? 4 : 3)
    Refine 4
    VariableTracerVOFHeight T
    VariableCurvature K T
    InitFraction T (ellipse (0, 0, 0.2, 0.3))
    Time { end = 0 }
    OutputSimulation { start = end } stdout
}
GfsBox { pid = 0 }
GfsBox { pid = 1 }
1 2 right