Numerical Study Of Water Plume Behavior
Under Shallow Depth Explosion
Author(s)
C.-C. Liang, T.-H. Liu & W.-M. Tseng
Abstract
The most obvious and spectacular features of underwater explosions are the
disturbances of the water surface above the charge. The overall hydrodynamic
phenomena involved in this process are extremely complicated. Much of the
present knowledge and understanding of this field was acquired because of the
demands and the few available discussions of the subject have become
inadequate or obsolete. This paper evaluates and proceeds on simulation ability
of shallow depth explosion plume by MSC.Dytran finite element software. Also
in this paper, numerical studies of explosion plume which includes contours of
the plume (plume height, plume width and plume thickness) are investigated in
details and compared with the relative literature’s empirical methodology. The
studies presented in this paper attempt to supply a reasonable comprehensive
account, which will be used for workers in the field of underwater explosion and
others who are interested in the water Barrier Defense.
Keywords: underwater explosion, shock bubble, water plume, water barrier.
1 Introduction
The phenomena of water plume (Figure 1) during an underwater explosion of
solid explosives are still not very well understood. The most obvious features
above the surface depend considerably on the initial depth of the charge, being
quite spectacular for shallow explosions. The sequence of events in the shallow
case may be quite complicated, but three main phases can be distinguished.
These results form the arrival of the primary shock wave at the surface, and the
final breakthrough of the gases to the atmosphere [1-3]. The first effect of the
explosion to arrive at the surface is the underwater shock wave. The shock wave
Keywords
underwater explosion, shock bubble, water plume, water barrier.
Related Book
Other papers in this volume
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