MIKE 21 BW - Selecting a Model Area (2 DH)

Reference Manual
112 MIKE 21 BW - © DHI
Selecting a model area (2DH)
In deciding the area to be included in your model, you must consider the area
of interest, and the positions and types of the model boundaries to be used.
In many short-wave applications, such as enclosed harbour basins, the area
of interest is relatively well defined. Here, the selection of the area to be mod-
elled reduces to deciding on the position and type of the boundaries.
A typical situation is schematised in Figure 5.4.
Figure 5.4 Enclosed Harbour
In many cases involving breakwaters, what happens in part of the area
between the outer face of a breakwater and an adjacent model boundary may
have no influence on the main area of interest. These areas can be turned
into (artificial) land without affecting the accuracy of the results, as illustrated
in Figure 5.5. This can result in significant savings in computation time.
It is stressed that the selection of model area and artificial land areas is
closely connected to the wave conditions to be modelled. In this context the
wave direction and directional spreading is important (see section 5.3.4 on
Setup of internal generation lines).