Mukarrom, Jauhar Abid (2018) Studi Penelitian Refleksi Gelombang Pada Terumbu Buatan Bentuk Heksagonal Dengan Pengaruh Konfigurasi Vertikal. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Fungsi terumbu karang buatan (artificial reef) tidak hanya untuk meningkatkan pertumbuhan karang laut, tapi juga berfungsi sebagai peredam gelombang laut ambang bawah. Terdapat beberapa bentuk terumbu karang buatan yang berfungsi sebagai submerged breakwater diantaranya Aqua reef, Turtle Reef, Reef Ball, dan lain sebagainya. Dalam penelitian ini akan dilakukan eksperimen refleksi gelombang pada terumbu buatan heksagonal dengan pengaruh konfigurasi vertikal.
Pada penelitian ini dilakukan pengujian pada model berskala 1 : 10 dengan 3 konfigurasi dan 15 variasi tinggi gelombang (H) dan periode gelombang (T). Analisa dilakukan dengan cara menghitung nilai koefisien refleksi menggunakan persamaan Goda & Suzuki.
Data yang didapat dari wave probe dan softwe water tide meter kemudian diolah menggunakan MATLAB dengan menggunakan persamaan Goda & Suzuki untuk jenis gelombang irreguler . Hasil penelitian menunjukkan bahwa nilai koefisien refleksi pada konfigurasi A berkisar antara 0.11 – 0,46, nilai koefisien refleksi konfigurasi B berkisar antara 0,42-0.76, dan nilai koefisien refleksi untuk konfigurasi C berkisar antara 0,51 – 0,93. Nilai koefisien refleksi berbanding lurus dengan nilai H/gT2,sehingga dapat disimpulkan bahwa semakin besar nilai H/gT2 maka semakin besar pula nilai koefisien refleksi nya.
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The function of artificial reefs is not only to improve the growth of coral reefs, but also serves as a wave damper. There are several forms of artificial reefs that serve as a marine breakwater such as Aqua reef, Turtle Reef, Reef Ball, and so forth. In this research the wave reflection of hexagonal artificial reefs with various vertical configuration will be examined.
This study was conducted on a 1: 10 scale model with 3 configurations and 15 variations of wave height (H) and wave period (T). The analysis is performed using reflection coefficient formula of Goda & Suzuki.
Data obtained from the wave probe and softwe Water Tide Meter are processed using MATLAB by for irregular wave. The results showed the reflection coefficient on configuration A ranged from 0.11 to 0.46, the reflection ceofficient on configuration B between 0.42-0.76, and reflection coefficient for configuration C ranged from 0,51 - 0,93. The value of the reflection is proportional to the value of H / gT2, so it can be concluded that the greater the H / gT2 the greater the result of his reflection.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 627.24 Muk s-1 3100018074518 |
| Uncontrolled Keywords: | artificial hexareef; koefisien refleksi; gelombang irreguler; reflection coefficient; irreguler wave |
| Subjects: | S Agriculture > SH Aquaculture. Fisheries. Angling > SH157.85 Artificial reefs. T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC147 Ocean wave power. |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Jauhar Abid Mukarrom |
| Date Deposited: | 07 Mar 2018 05:12 |
| Last Modified: | 06 Jul 2020 10:32 |
| URI: | http://repository.its.ac.id/id/eprint/49899 |
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