The Transient Interaction Of Plates
With Extreme Water Waves:
Effects Of Deformability And Hull Cavitation
Author(s)
Sh. U. Galiev & R. G. J. Flay
Abstract
The cavitation aspect of the transient interaction of deformable surfaces with
water waves is considered. This problem is examined using an experimental
approach by creating a pressure wave in water and impacting it on metal plates.
Such loadings can occur from underwater explosions or from large surface
waves, and are important for the design of merchant and naval ships, and
offshore structures. Often these loadings cannot be predicted very accurately. In
particular, the uncertainties in the loadings are associated with cavitation that is
generated during the transient water-deformable surface interaction process.
Keywords: extreme water waves, hull cavitation, deformability, structure-fluid
interaction.
1 Introduction
It is common for mid-ocean storm waves to reach 7 m in height, and in extreme
conditions such waves can reach heights of 15 m. However, during recent years
researchers observed the existence of vastly more massive waves – veritable
monsters up to 30 m in height. Such waves were said to consist of an almost
vertical wall of water. It has been confirmed that these monsters are much more
common than mathematical probability theory would predict using a Rayleigh
distribution of wave heights. In fact, they seem to occur in all of the world’s
oceans many times every year [1–4].
The existence of these extreme waves makes it important to re-examinee
some fundamental ideas of merchant ship design that were earlier developed
Keywords
extreme water waves, hull cavitation, deformability, structure-fluid
interaction.
Related Book
Other papers in this volume
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