8.5 Ponce de Leon Inlet, FL
This example shows the application of CGWAVE to Ponce de Leon Inlet, Florida.
This inlet is the subject of a physical model study, allowing the comparison of laboratory
data to CGWAVE model runs. Wave-current interaction may play a very important role
on the wave fields to be predicted in coastal inlets (Demirbilek et al. 1996b); this capability
will be available in CGWAVE model in the near future.
The coastline of the modeled domain is oriented in roughly a north/south manner.
The modeled domain is bounded by a semi-circle of 2.5 km radius. A jetty extends into
the domain from the north side of the inlet. The finite element mesh for this domain
contains of about 118000 nodes and 234000 elements.
An example of a CGWAVE run of this domain is given. The wave phase diagram
is shown in Figure 24 and estimated wave amplitudes are shown in Figure 25. The
incident wave amplitude was 15 seconds. The incident wave direction was normal to the
coastline. Coastlines were chosen to be fully energy absorbing (reflection coefficient of
0.0). Results from the numerical model are compared to laboratory data in Figure 26.
The data comparison is made along a transect oriented parallel to the coastline and located
several hundred meters to the south of the jetty. The CGWAVE model results are for this
case are shown prior to fine tuning of the numerical code and adjustment of model
parameters. The study is in progress at the time of this writing. A detailed discussion of
the results is expected to appear in a relevant scholarly journal at the conclusion of the
study.
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