Add Rayleigh-Taylor problem parameter file.

Signed-off-by: Grzegorz Kowal <grzegorz@amuncode.org>

problems/rt.in

@@ -0,0 +1,63 @@
+# problem name and parameters
+#
+problem              = "rt"
+gamma                = 1.4
+
+# random number generator parameters
+#
+gentype              = "random"
+
+# physics
+#
+equation_system      = "hd"
+equation_of_state    = "adi"
+
+# methods
+#
+time_advance         = "ssprk(m,2)"
+stages               = 3
+riemann_solver       = "hllc"
+reconstruction       = "tvd"
+limiter              = "mc"
+fix_positivity       = "off"
+
+# mesh parameters
+#
+xblocks              =  1
+yblocks              =  3
+xmin                 = -2.5d-01
+xmax                 =  2.5d-01
+ymin                 = -7.5d-01
+ymax                 =  7.5d-01
+zmin                 = -5.0d-01
+zmax                 =  5.0d-01
+
+# refinement control
+#
+ncells               = 16
+nghosts              =  4
+minlev               =  1
+maxlev               =  6
+
+# boundary conditions
+#
+xlbndry              = "periodic"
+xubndry              = "periodic"
+ylbndry              = "reflecting"
+yubndry              = "reflecting"
+zlbndry              = "periodic"
+zubndry              = "periodic"
+
+# runtime control parameters
+#
+tmax                 = 1.0d+01
+cfl                  = 3.0d-01
+
+# data output control
+#
+precise_snapshots    = "on"
+snapshot_type        = "p"
+snapshot_interval    = 1.0d-01
+restart_number       = -1
+integrals_interval   = 10
+generate_xdmf        = "on"