The experiments of Setchell,Strom and Sturtevant (JFM 1972), provide an excellent opportunity for validation of the VTF code when employing the GFM (ghost-fluid method). In these experiments a strong shock wave propagating into a gradually converging channel experiences a progressive strengthening. The mechanism by which this occurs is dominated by the refected shocks and triple points. Good agreement requires that these features are well represented, and poses a good test for the GFM.
A breif summary of the experimental confinguration:
The results of the experiments take the form of a plot of the shock speed as measured on the axis of symmetry as a function of distance from the apex of the cone.