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.