Hostname: page-component-7479d7b7d-wxhwt Total loading time: 0 Render date: 2024-07-15T17:50:43.130Z Has data issue: false hasContentIssue false

Unsteady waves on an open two layer fluid

Published online by Cambridge University Press:  17 February 2009

P. W. Sharp
Affiliation:
Departement of Mathematics, University of Canterbury, Christchrch 1, New Zealand. Present address: Department of Computer Science, University of Toronto, Toronto, Canada M5S 1A4.
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The evolution of small amplitude waves on an open two layer fluid is investigated. The spatially periodic surface and interface displacements are represented as Fourier series with time dependent coefficients, for which evolution equations with all significant quadratic interactions included, are derived. Solutions to these equations are found analytically for a small number of harmonics, and numerically for a larger number of harmonics. Two numerical solutions are given to illustrate the evolution properties.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1984

References

[1]Ball, F. K., “Energy transfer between external and internal gravity waves’, J. Fluid Mech. 19 (1964), 465478.CrossRefGoogle Scholar
[2]Beeney, D. J., “Significant interaction between small and large scale surface waves”, Stud. Appl. Math. 55 (1976), 93106.Google Scholar
[3]Bretherton, F. P., “Resonat interactions between waves. The case of discrete oscillation”, J. Fluid Mech. 20 (1964), 457479.CrossRefGoogle Scholar
[4]Bryant, P. J., “Periodic waves in shallow water”, J. Fluid Mech. 59 (1973), 625644.Google Scholar
[5]Bryant, P. J., “Permanent wave structures on an open two layer fluid”, Stud. Appl. Math. 59 (1977), 225246.Google Scholar
[6]Hasizume, Yasuo and Ikeda, Norito, “Resonant intrection of waves on a stratified fluid’, J. Phys. Soc. Japan 45 (1978), 665673.CrossRefGoogle Scholar
[7]Lamb, H., Hydronamics 3rd ed. (Cambridge University Press, 1906), 355356.Google Scholar
[8]Phillips, O. M., “On the dynamics of unsteady gravity waves of finite amplitude: Part 1: The elementry intreactions’, J. Fluid Mech 9 (1960), 193217.CrossRefGoogle Scholar
[9]Phillips, O. M., The dynamic of the upper ocean, 2nd ed.Cambridge University Press, 1977), 38.Google Scholar
[10]Rixk, M. H. and Ko, D. R. S., “Interaction between small scale surface waves and large scale internal waves’, Phys. Fluids 21 (1987), 19001907.Google Scholar
[11]Shampine, L. F., and Grodon, M. K., Computer solution of ordinary differential equations. The intial value problem (W. H. Freeman and Co., 1975).Google Scholar
[12]Sharp, P. W., ph.D. Theses, University of Acnterbury, 1975.Google Scholar
[13]Watson, K. M., West, B. J. and Cohen, B. I., “Coupling of surface and internal gravity waves: a mode coupling model”, J. Fluid Mech 77 (1976), 185208.Google Scholar