Examples
26 MIKE 21 BW - © DHI
Sloping beach with wave breaking and moving shoreline:
.\Examples\MIKE_21\BW\Sloping_Beach
Barred beach with wave breaking:
.\Examples\MIKE_21\BW\Torsminde_Barred_Beach
Please note that the layout of some figures and illustrations presented in this
release of the User Guide is optimised for the integrated Online Help and dig-
ital version of this User Guide.
4.2 2DH Boussinesq Wave Module - Examples
4.2.1 Numerical flume test
Purpose of the example
This fairly simple example is included to illustrate the propagation of irregular
waves in a numerical wave flume using the 2DH Boussinesq Wave Module.
Model setup
The model setup is illustrated in Figure 4.1. The length (in the model
east/west direction) of the flume is 350 m and the width (in the model north
/south direction) is 55 m. The uniform depth is 10 m.
Figure 4.1 Model layout. The 10 point wide areas indicate sponge layers and the
line at j=12 indicates the internal wave generation line
The waves are generated internally inside the model domain, which is the
most common method of forcing a Boussinesq wave model in practical appli-
cations. Thus, all model boundaries are closed, i.e. considered as land
points. At the generation line (j= 12) a time series of fluxes is imposed. This
time series is generated using the MIKE 21 Toolbox (wave part) program
Random Wave Generation. The significant wave height is H
m0
= 1 m and the
spectral peak period is T
p
=10 s. The waves are synthesised based on a
mean JONSWAP spectrum. As the minimum wave period is T
min
= 6 s, the
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