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On the short-wave asymptotic motion due to a cylinder heaving on water of finite depth. III

Published online by Cambridge University Press:  24 October 2008

P. F. Robinson-Rhodes
Affiliation:
Department of Mathematics, Victoria University of Wellington, New Zealand

Abstract

This paper concludes the investigation into the short-wave asymptotic motion due to a cylinder heaving on water of finite constant depth, and we now present a rigorous method for an arbitrary smooth cylinder which intersects the free surface normally. The aim is to justify those assumptions made in a previous paper concerning the asymptotic values on the cylinder of the two related auxiliary potentials–only one of which need be considered–which were introduced to enable an evaluation of the descriptive wave-making and virtual-mass coefficients. This is done by constructing an integral equation of the second kind whose kernel is small and deducing the leading term in the iteration solution. The method is an extension of the method for infinite depth which is treated first and it is found that there is a simple relationship between the kernels. The argument depends to some extent on results established in another previous paper–which is generalized herein–on the rigorous method for the special case of a half-immersed circular cylinder.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1972

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References

REFERENCES

(1)Davis, A. M. J.Two-dimensional oscillations in a canal of arbitrary cross-section. Proc. Cambridge Philos. Soc. 61 (1965), 827846.CrossRefGoogle Scholar
(2)Davis, A. M.J. Short surface waves in a canal: dependence of frequency on curvature. Proc. Roy. Soc. Ser. A 313 (1969), 249260.Google Scholar
(3)Rhodes-Robinson, P. F.On the short-wave asymptotic motion due to a cylinder heaving on water of finite depth. I. Proc. Cambridge Philos. Soc. 67 (1970), 423442.CrossRefGoogle Scholar
(4)Rhodes-Robinson, P. F.On the short-wave asymptotic motion due to a cylinder heaving on water of finite depth. II. Proc. Cambridge Philos. Soc. 67 (1970), 443468.CrossRefGoogle Scholar
(5)Ursell, F.Short surface waves due to an oscillating immersed body. Proc. Roy. Soc. Ser. A 220 (1953), 90103.Google Scholar