5 4 GfsSimulation GfsBox GfsGEdge {} {
	Refine 6
	GfsTime { end = 40 }
	GfsOutputPPM  { step = 0.1 } { ppm2mpeg > sim-vort.mpg } {
					min = -30 max = 30 v = Vorticity
	}
}

GfsBox { left = Boundary { BcDirichlet U 1 } }
GfsBox { }
GfsBox { right = BoundaryOutflow }
GfsBox { }
GfsBox { }

1 2 right
2 3 right
2 4 top
2 5 bottom