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Bottom friction dissipation in the Belgian coastal regions
Luo, W.; Monbaliu, J.; Berlamont, J. (1997). Bottom friction dissipation in the Belgian coastal regions, in: Edge, B.L. (Ed.) Coastal Engineering 1996: Proceedings of the 25th International Conference, September 2-6, 1996, Orlando, Florida. pp. 836-849
In: Edge, B.L. (Ed.) (1997). Coastal Engineering 1996: Proceedings of the 25th International Conference, September 2-6, 1996, Orlando, Florida. American Society of Civil Engineers (ASCE): New York. ISBN 0-7844-0242-6. Vol. 1(xl, 1254); Vol. 2(xxxiv, 2572); Vol. 3(xxxiv, 3804); vol. 4(xxxiv, 4832) pp., meer
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Documenttype: Congresbijdrage
Trefwoorden
    Belgium
    Energy transfer > Energy dissipation > Wave dissipation
    Water bodies > Coastal waters
    België [Marine Regions]
    Marien/Kust
Auteurs  Top 
  • Luo, W.
  • Monbaliu, J., meer
  • Berlamont, J., meer
Abstract
    The effect of bottom friction dissipation and of the different formulations used for this term on the wave evolution has been investigated in the Belgian coastal regions. Two eddy viscosity models for the bottom friction dissipation, the Madsen et al. (1988) model and Weber's (1991 a) model have been implemented in the Cycle 4 version of the third generation WAM model (Gunther et al., 1992). The wave conditions for the area of the southern North Sea were hindcasted for the February 1993 storm. The results are compared with buoy data. It is found that the net effect of bottom friction dissipation on the significant wave height hindcast is quite big, in the order of 80% (of the wave height when the bottom friction dissipation is taken into account) along the Belgian coast. Different formulations for the bottom friction dissipation have a quite significant effect on wave evolution in storm conditions. The use of equivalent dissipation coefficients (Luo et al., 1994) results in nearly identical wave hindcasts.
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