Author:
BLOOMFIELD LYNN J.,KERR ROSS C.
Abstract
An experimental and theoretical investigation of the flow and density distribution
arising from the upward turbulent injection of a dense fluid into a stratified environment
of finite extent is presented. Initially, the rising fluid reaches a maximum height
before the flow reverses direction and intrudes either along the base of the tank or
at an intermediate height in the environment. As more dense fluid is added through
either a point or line source, both the fountain and the environment evolve with time.
We determine expressions for the motion of the ascending and descending ‘fronts’
that mark the vertical extent of the spreading layer. We also consider the changes to
the environmental density profile and determine an expression for the rate at which
the top of the fountain rises due to these changes. Finally, we apply our results
quantitatively to two physical problems: the replenishment of magma chambers and
the heating or cooling of a room.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
29 articles.
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