Journal article
Waveless subcritical flow past symmetric bottom topography
European Journal of Applied Mathematics, Vol.24(2), pp.213-230
2013
Abstract
The subcritical flow of a stream over a bottom obstruction or depression is considered with particular interest in obtaining solutions with no downstream waves. In the linearised problem this can always be achieved by superposition of multiple obstructions, but it is not clear whether this is possible in a full nonlinear problem. Solutions computed here indicate that there is an effective nonlinear superposition principle at work as no special shape modifications were required to obtain wave-cancelling solutions. Waveless solutions corresponding to one or more trapped waves are computed at a range of different Froude numbers and are shown to provide a rather elaborate mosaic of solution curves in parameter space when both negative and positive obstruction heights are included.
Details
- Title
- Waveless subcritical flow past symmetric bottom topography
- Authors/Creators
- R.J. Holmes (Author/Creator) - Murdoch UniversityG.C. Hocking (Author/Creator) - Murdoch UniversityL.K. Forbes (Author/Creator) - University of TasmaniaN.Y. Baillard (Author/Creator) - Bureau of Meteorology
- Publication Details
- European Journal of Applied Mathematics, Vol.24(2), pp.213-230
- Publisher
- Cambridge University Press
- Identifiers
- 991005541025407891
- Murdoch Affiliation
- School of Chemical and Mathematical Science
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- Citation topics
- 5 Physics
- 5.230 Solitons
- 5.230.124 Soliton Dynamics
- Web Of Science research areas
- Mathematics, Applied
- ESI research areas
- Mathematics