Muhammad, Habib (2020) Analisa Simulasi Gelombang Irreguler Dengan Berbagai Model Turbulensi Menggunakan Pendekatan CFD Untuk Kebutuhan Penelitian Terkait Gelombang Laut. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Gelombang laut merupakan suatu gerakan naik turunnya air laut yang tanpa disertai dengan perpindahan massa airnya yang umum disebabkan karenan adanya tiupan angin. Penelitian untuk mengamati gelombang baik secara eksperimen maupun simulasi telah banyak dilakukan. Kajian dilakukan dengan tujuan untuk menggambarkan kondisi gelombang laut yang mendekati kondisi sebenarnya. Penelitian ini dilakukan untuk mengetahui bentu gelombang irreguler pada berbagai model turbulensi dengan menggunakan metode pendekatan CFD yangakan dibandingkan dengan data hasil eksperimen. Variasi model turbulensi yang disimulasikan yaitu model Spallart-Allmarast, k-omega Wilcox, model k-omega BSL Menter, model k-omega SST-menterdan modelk-epsilon. Input parameter gelombang meliputi nilai tinggi gelombang 0,2 m , periode gelombang 2,21 s, dan jenis spektrum yang digunakan adalah JONSWAP. Analisa hasil simulasi menunjukkan bahwa tinggi gelombang dengan variasi model turbulensi k-epsilon menunjukkan kesesuaian yang baik terhadap data eksperimen daripada model turbulen yang lain. Tinggi gelombang signifikan (Hs) terbesar ditunjukkan oleh model turbulen k-omega BSL-Menter sebesar 0,467 m.
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Sea waves are a movement of ups and downs of sea water without being accompanied by a mass transfer of water which is generally caused due to the wind. Research to observe waves both experimentally and simulations has been done. The study was conducted with the aim to describe the condition of ocean waves that are close to the actual conditions. This study was conducted to determine the irregular waveforms in various turbulence models by using the CFD approach method which will be compared with experimental data. The variation of the turbulence models that are simulated are the Spallart-Allmarast model, the Wilcox k-omega, the BSL k-omega model, the SST-ministerial k-omega model and the e-nylon model. Input wave parameters include wave height values of 0.2 m, wave period 2.21 s, and the type of spectrum used is JONSWAP. Analysis of the simulation results shows that the height of the waves with the variation of the k-epsilon turbulence model shows better compatibility with experimental data than other turbulent models. The biggest significant wave height (Hs) is shown by the turbulent model of k-omega BSL-Menter of 0.467 m.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSSP 623.81 Muh a-1 2020 |
| Uncontrolled Keywords: | Gelombang Irreguler, tinggi gelombang, CFD |
| Subjects: | T Technology > TC Hydraulic engineering. Ocean engineering > TC147 Ocean wave power. V Naval Science > V Naval Science (General) |
| Divisions: | Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis |
| Depositing User: | Habib Muhammad |
| Date Deposited: | 30 Apr 2024 06:21 |
| Last Modified: | 30 Apr 2024 06:21 |
| URI: | http://repository.its.ac.id/id/eprint/73873 |
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