Modeling of wave attenuation by vegetation with XBeach

Modeling of wave attenuation by vegetation with XBeach

Van Rooijen, A.A.
Van Thiel de Vries, J.S.M.
McCall, R.T.
Van Dongeren, A.R.
Roelvink, J.A.
Reniers, A.J.H.M.

Civil Engineering and Geosciences

Hydraulic Engineering

2015-06-30

Over the past decades the effect of vegetation (e.g. kelp, mangroves, sea grass) on nearshore coastal processes has received more and more attention. In recent years several numerical wave models have been extended to include this effect. In the current study, the numerical storm impact model XBeach was extended with formulations found in literature for damping of short waves, infragravity waves, and mean flow. The model was then verified using a number of laboratory test cases. XBeach was well able to reproduce the damping effect of vegetation on waves, even though the amount of calibration done was limited. This work is considered as a first step only, and further model developments regarding vegetation implementation in XBeach are foreseen for the near future. Eventually, XBeach should be able to accurately take into account the effect of relatively complex vegetation species (e.g. mangroves) on the nearshore hydro- and morphodynamics in a computationally efficient way.

storm impact model
wave damping
kelp
mangroves
sea grass

http://resolver.tudelft.nl/uuid:98a66b95-8fed-421a-9bfe-4ae978375dbe

IAHR

E-proceedings of the 36th IAHR World Congress, The Hague, the Netherlands, 28 June-3 July 2015

Institutional Repository

conference paper

(c) 2015 The Author(s)