MIKE 21 BW, User Manual, Page: 32 / 196

Examples
32 MIKE 21 BW - © DHI
To reduce the number of water points artificial land is introduced outside the
main breakwaters of the entrance leaving only a small area outside the har-
bour from where the waves can enter the harbour. This limits the application
to unidirectional incoming waves from direction WSW (247.5° N).
Artificial land is also introduced in the innermost part of the harbour. This area
is backup by a 10 point wide sponge layer in order to absorb the waves here.
In reality the waves will break at a small beach here, but this will not affect the
waves in the central part of the harbour.
Figure 4.6 Model setup for Rønne Harbour. Upper panel shows the bathymetry,
the middle panel the absorbing sponge layers (10 point wide) and the
lower panel the areas where partial wave reflection is required (3-5
point wide)
The maximum water depth is approximately 11 m in the model area. The
event to be simulated corresponds to a situation occurring 10 hours per year
(on average) and is characterised by having a significant wave height of H
m0