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| Titel |
Solitary interface wave propagation in two-layer flow of slowly varied bottom |
| VerfasserIn |
Tatiana Talipova, Efim Pelinovsky, Oxana Kurkina, Ira Didenkulova |
| Konferenz |
EGU General Assembly 2013
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 15 (2013) |
| Datensatznummer |
250073193
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| Zusammenfassung |
| The model of transformation of two-dimensional nonlinear internal waves in stratified fluid is described. The proposed model is based on the Korteweg-de Vries equation and its generalizations. Coefficients of the equation are calculated from vertical distributions of fluid density by solving the Sturm-Liouville eigenvalue problem. The model takes into account the horizontal variability of hydrological fields and of water depth. As an example, a transformation of a solitary wave (soliton) in two-layer flow of decreasing depth is studied. It is shown that the soliton breaks in two critical points. One of them is associated with the transformation of two-layer flow into one-layer flow. Another critical point occurs when the fluid layers have the same thickness. Amplitude of a solitary wave is calculated as a function of the variable thickness of the lower layer. |
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