STUDI UJI MODEL FISIK PEREDAM GELOMBANG TENGGELAM BENTUK ENAM GIGI GERGAJI
ABSTRACT: In framework of
effort to overcome the coastal damage, this article try to lay open the
alternative choice form of construction which serve later the purpose of reduce
water wave before arrive into the surf zone. The construction model test has
six tooth of
saws which form
angle 0O38’37” and
installed in the
water level equal
to flatten the
water, ten, twenty, three
centimeter water dept, water wave high is given on model test have four type
between 5 up to 14,8 cm with regular
waves type. This
experiment could result
have to reduce
water wave come
from deep water
before arrive at coastal,
with approach refraction effect
principal from tooth
of saw model
test. Result of
study with graph
analysis depends on relation
between independent variable
wave hydraulics with transmission
coefficient and relation
between independent variable water
level on the
weir of the
model test with hydraulics with
transmission coefficient(KT), have result
make up a
function of wave slope
and water level
on weir of
the model. From the
six tooth saw
model test with angle
0O 38’ 37”
have resulting is
best for reduce
water wave and
capable reducing 55%-
75% transmission wave. Effect Orthogonal
wide wave (B2)
of the angular
shape the tooth
saw that happened
good enough between 2 – 3
times wide spread of the model test (L) or (B2/L) equal to 200%- 300%
specially the water level on the weir (h2/d)= 0.125, so that of course will
made coastal protected happened abration/ erosion and even coastal line will be
able to experienced of acresi.
Keywords: Model of six tooth
saws, refraction wave, breakwater
Penulis: Johnny MT. S ,
Muchtasor, Widi Agus Pratikto , Wahyudi
Kode Jurnal: jptsipildd080006
