|
The analysis
of long wave diffractions due to offshore breakwater and
seawall
Sung Duk Kim
Chung-Ang University, Department of Civil and Environmental
Engineering, 221, Seoul, Korea.
E-mail:
tltk@wm.cau.ac.kr. Tel: +82-2820-5253.
Accepted 25 January, 2010 |
|
The purpose of this study was to investigate the long
wave-structure interaction that differs with varying
incident wave period, length of offshore breakwater, and
distance between offshore breakwater and seawall. The
theoretical method was based upon the linear diffraction
theory obtained by a pair of boundary integral approach. The
water depth in the fluid region was assumed to be constant.
To investigate the long wave interaction that was affected
by offshore structure and seawall, a numerical program was
developed, and the simulation was carried out by varying the
conditions of the distance between two structures and length
of offshore structures, and incident wave period. The
results showed that various aspects of wave fields have been
observed in accordance with conditions of geometric aspects.
This study can effectively be utilized for safety assessment
to various breakwater systems and layout of offshore
breakwater in the ocean and coastal field. It can give
safety information regarding the construction of offshore
structure and seawall in coastal regions.
Key words:
Long wave-structure interaction, boundary integral approach,
offshore breakwater, seawall. |
