Abstract
The primary goal of the paper is to demonstrate that a circular
jet
of inviscid liquid,
which issues from a nozzle at an angle to the gravitational field, can
sustain a self-excited linear global mode. The mode is found for the
flow that is locally convectively
unstable at every point, i.e. has no region of local absolute instability.
A simple
experiment shows that the mode can evolve into a wave of finite amplitude,
which is
localized in space near the nozzle.Section 2 of the paper summarizes some recent developments in the linear
theory
of stability of weakly inhomogeneous flows.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Cited by
14 articles.
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