Journal
COASTAL ENGINEERING
Volume 51, Issue 2, Pages 103-118Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.coastaleng.2003.11.003
Keywords
wave propagation; vegetation field; kelp bed; drag force; wave damping; breaking waves; empirical model; dissipation
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In this work, a model for wave transformation on vegetation fields is presented. The formulation includes wave damping and wave breaking over vegetation fields at variable depths. Based on a nonlinear formulation of the drag force, either the transformation of monochromatic waves or irregular waves can be modelled considering geometric and physical characteristics of the vegetation field. The model depends on a single parameter similar to the drag coefficient, which is parameterized as a function of the local Keulegan-Carpenter number for a specific type of plant. Given this parameterization, determined with laboratory experiments for each plant type, the model is able to reproduce the root-mean-square wave height transformation observed in experimental data with reasonable accuracy. (C) 2004 Elsevier B.V All rights reserved.
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