ABSTRACT
We consider the simple, yet very relevant, problem of a two-dimensional current which propagates at the bottom of a large container filled with a relatively deep ambient fluid; see Fig. 2.1.
front shock
ambient
g
current
open surface or top wall
bottom wall
dam or lock
backwall
FIGURE 2.1: Schematic description of the gravity current configurations for a bottom current of more dense (heavy) fluid released from behind a lock.