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XBeach-Veg is a module of the XBeach model software that can take into account the effect of wave and flow damping due to vegetation. This wiki-page gives an overview on the model itself, how to use it, and typical applications. If you have any questions, please contact Arnold.vanRooijen@deltares.nl.
XBeach
XBeach is a numerical storm impact model software that allows for simulations of flow, waves, sediment transport and morphological changes (Roelvink et al., 2009). It is mostly applied for relatively short (hours to days) and medium-scale (few km's) applications, although nowadays paralel computing allows for longer and larger simulations easily. The model is in general very similar to Delft3D, but has a few differences. In contrary to Delft3D, XBeach computes the propagation of short (wind-generated) waves by itself (so no coupling with SWAN needed), and computes these waves on the scale of wave groups. Furthermore, XBeach computes the long, infragravity waves which are found to be important during storm conditions (Van Thiel de Vries, 2009). In short you could roughly say that XBeach is more accurate than Delft3D+SWAN, but it will also need a higher grid resolution, so simulations will take more time. Therefore Delft3D (i.c.w. SWAN) is generally used for longer simulations on a larger scale. For more information on XBeach, please refer to www.xbeach.org and Roelvink et al. (2009).
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Damping of long (infragravity) waves and flow
Typical applications
XBeach uses the depth-averaged Generalized Lagrangian Mean (GLM) formulations (Andrews & McIntyre, 1978; Walstra et al., 2000) to solve the mean flow and the infragravity water level motions and velocities. Since here the instantaneous velocities are directly resolved, the effect of vegetation can be directly included using the drag force:
Typical applications
- coastal areas where waves are present
- mangrove forests
- kelp vegetation
- salt marshes
- etc.
test test test
How to use it?
test test testunder development
Further readings
Van Rooijen et al. (2014). MODELING OF WAVE ATTENUATION BY VEGETATION WITH XBEACH. Submitted to conference proceedings of the 36th IAHR World Congress (28 June – 3 July, 2015, The Hague, The Netherlands)
Roelvink et al. 2009
McCall et al 2010
Van Thiel de Vries 2009test test test