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Important note for application of unstructured mesh
For generation of files including sponge, porosity, bed friction and filter coeffi-
cients you have to use the original bathymetry/profile file (as used as input to
the MIKE 21 Toolbox program “Mesh Generation for MIKE 21 BW”). Linear
interpolation is used to obtain the respective values at the non-uniformed dis-
tributed node points.
Figure 5.57 Example of spatial resolution for a barred coastal profile. Conditions:
Spectral peak period 8 s, 40 nodes per wave length and minimum mesh
spacing 0.2 m
5.5.13 Minimum wave period
The minimum wave period that can be resolved in the simulation is governed
by the maximum water depth in the model area and by whether deep water
terms are included
If the deep water terms are excluded, the minimum wave period can be cal-
culated from h
max
/L
0
= 0.22, where h
max
is the maximum water depth and L
0
is the deep water wave length (L
0
=1.56T
s
)
Including the deep water terms increases the ratio h/L
0
to 0.5.
Example
Maximum water depth: 20 m
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