| タイトル | Square patterns and secondary instabilities in driven capillary waves |
| 著者（英） | Milner, S. T. |
| 著者所属（英） | Bell Telephone Labs., Inc. |
| 発行日 | 1991-04-01 |
| 言語 | eng |
| 内容記述 | Amplitude equations (including nonlinear damping terms) are derived which describe the evolution of patterns in large-aspect-ratio driven capillary wave experiments. For drive strength just above threshold, a reduction of the number of marginal modes (from traveling capillary waves to standing waves) leads to simpler amplitude equations, which have a Lyapunov functional. This functional determines the wavenumber and symmetry (square) of the most stable uniform state. The original amplitude equations, however, have a secondary instability to transverse amplitude modulation (TAM), which is not present in the standing-wave equations. The TAM instability announces the restoration of the full set of marginal modes. |
| NASA分類 | FLUID MECHANICS AND HEAT TRANSFER |
| レポートNO | 91A39727 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/347843 |
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