| Title: | NONLINEARITY IN IRREGULAR WAVES FROM LINEAR LAGRANGEIAN SUPERPOSITION |
| DOI No: | 10.1142/9789812701916_0012 |
| Source: | COASTAL ENGINEERING 2004 (pp 169-181)
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| Author(s): | STEFAN WOLTERING
bremenports GmbH & Co KG - bremenports consult -, Elbinger Platz 1, 27570 Bremerhaven, Germany
KARL-FRIEDRICH DAEMRICH
Franzius-Institut, University of Hannover, Nienburger Str.4, 30167 Hannover, Germany
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| Abstract: | The linear superposition model is a common and useful tool to deal with irregular wave problems. However, time-series of surface and other wave related quantities created by this method do not contain higher order components. To enhance the capability of the method with respect to nonlinearity, a superposition method based on a LAGRANGEian view of the linear wave theory (superposition of orbital positions rather than EULERian components) is performed. The method is demonstrated on examples of regular waves and irregular wave trains in deep water, but can be applied in shallower water, too. |
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