1d Shallow water equations with initial data consisting of two 2-shocks, which collide and produce a 1-rarefaction and 2-shock.
Example [book/chap13/collide] to accompany the book Finite Volume Methods for Hyperbolic Problems by R. J. LeVeque. This illustrates the solution shown in Figure 13.19.
Converted to Clawpack 5.4 form in 2017.