Hostname: page-component-8448b6f56d-cfpbc Total loading time: 0 Render date: 2024-04-24T08:43:03.762Z Has data issue: false hasContentIssue false

Some exact solutions to the nonlinear shallow-water wave equations

Published online by Cambridge University Press:  20 April 2006

William Carlisle Thacker
Affiliation:
Sea-Air Interaction Laboratory, National Oceanographic and Atmospheric Administration, United States Department of Commerce

Abstract

These exact solutions correspond to time-dependent motions in parabolic basins. A characteristic feature is that the shoreline is not fixed. It is free to move and must be determined as part of the solution. In general, the motion is oscillatory and has the appropriate small-amplitude limit. For the case in which the parabolic basin reduces to a flat plane, there is a solution for a flood wave. These solutions provide a valuable test for numerical models of inundating storm tides.

Type
Research Article
Copyright
© 1981 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Ball, F. K. 1964 An exact theory of simple finite shallow water oscillations on a rotating earth. Hydraulics and Fluid Mechanics (ed. R. Silvester), pp. 293305. MacMillan.
Carrier, G. F. & Greenspan, H. P. 1958 Water waves of finite amplitude on a sloping beach. J. Fluid Mech. 4, 97109.Google Scholar
Dirichlet, G. L. 1860 Untersuchungen über ein Problem der Hydrodynamik. Abh. Kän. Gest. Wiss. Göttingen 8, 342.Google Scholar
Freeman, N. C. 1972 Simple waves on shear flows: similarity solutions. J. Fluid Mech. 56, 257263.Google Scholar
Gerstner, F. J. von 1802 Theorie der Wellen. Adh. d. k. bohm. Ges. d. Wiss. Reprinted In Ann. der Physik, 1809, 32, 412440.
Lamb, H. 1945 Hydrodynamics, 6th edn. Dover.
Longuet-Higgins, M. S. 1972 A class of exact, time-dependent, free-surface flows. J. Fluid Mech. 55, 529543.Google Scholar
Longuet-Higgins, M. S. 1976 Self-similar, time-dependent flows with a free surface. J. Fluid Mech. 73, 603620.Google Scholar
Rankine, W. M. J. 1863 On the exact form of waves near the surface of deep water. Phil. Trans. Roy. Soc. A 153, 127138.Google Scholar
Sachdev, P. L. 1980 Exact, self-similar, time-dependent free surface flows under gravity. J. Fluid Mech. 96, 797802.Google Scholar
Thacker, W. C. 1977 Irregular grid finite-difference techniques: simulations of oscillations in shallow circular basins. J. Phys. Oceanogr. 7, 284292.Google Scholar