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+# 1. Infinitely Fast Flame (IFF)
+
+In this test case, semi-infinite solid and fluid regions are in contact.
+The solid region is at 650 K and the flame is at 660 K.
+
+The temperature profiles are extracted by the `singleGraph` functions _solidSingleGraph_ and _flameSingleGraph_ in the _system/_ directory. 
+These profiles may be compared with the analytical solution: 
+
+