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On ships in natural waterways
Chen, X.-N.; Uliczka, K. (1999). On ships in natural waterways, in: International Conference on Coastal Ships and Inland Waterways, Feb. 1999, London. pp. 1-10
In: (1999). International Conference on Coastal Ships and Inland Waterways, Feb. 1999, London. Royal Institution of Naval Architects: London. ISBN 0-903055-50-3

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Documenttype: Congresbijdrage

Auteurs  Top 
  • Chen, X.-N.
  • Uliczka, K.

Abstract
    The problem of ship wave making and propagation in shallow water over a varying topography is studied. A shallow water model, namely a varying-coefficient Kadomtsev-Petviashvill type equation, and the improved slender body theory are developed and used for such problem. The computer code SHALLOWTANK, which dealt previously only with ship motion on a constant-depth shallow water, is further extended for the transversally varying depth. A typical case, a container ship in a natural waterway for which the hydraulic model experiments were carried out at the Coastal Division, Federal Waterways Engineering and Research Institute, Hamburg, is numerically simulated. It shows that the effects of topography on generation and propagation of ship waves are significant. The phenomenon of ship wave shoaling is clearly observed in the numerical result. The calculated free surface elevations at five poin!ts are compared to the measurements. Satisfied agreements are achieved.

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