Analisis Cfd Pengaruh Biofouling Terhadap Hambatan Kapal Selam Darpa Suboff Pada Kondisi Submerged

Fertisio, Farhan (2022) Analisis Cfd Pengaruh Biofouling Terhadap Hambatan Kapal Selam Darpa Suboff Pada Kondisi Submerged. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 04111840000079Undergraduate_theisi.pdf Restricted to Repository staff only Download (5MB) | Request a copy

Abstract

Biofouling merupakan biota laut yang sering tumbuh pada lambung kapal khususnya lambung di bawah air. Keberadaan biofouling pada lambung kapal menyebabkan kenaikan tingkat kekasaran lambung sehingga dapat menyebabkan kenaikan nilai hambatan dari sebuah kapal sehingga dapat meningkatkan penggunaan bahan bakar kapal. Selain kenaikan hambatan biofouling juga menyebabkan aliran di sekitar lambung yang ditumbuhi menjadi turbulen akibat kekasaran yang ditimbulkan. Menurut penelitian, biofouling dapat menyebabkan kenaikan hambatan kapal sebesar 36.69 % untuk kapal permukaan. Selain berpengaruh terhadap hambatan kapal permukaan, biofouling juga berpengaruh terhadap hambatan kapal selam sebagai kapal yang beroperasi di bawah permukaan laut. Kapal selam DARPA Suboff merupakan bentuk kapal selam yang sering digunakan dalam analisis numerik menggunakan computational fluid dynamics (CFD). Untuk mengetahui pengaruh biofouling terhadap nilai hambatan dan pola aliran disekitar lambung akibat biofouling, dilakukan simulasi numerik menggunakan computational fluid dynamics (CFD) dengan basis persamaan Reynold Average Naviers Stokes (RANS). Simulasi numerik dilakukan dengan 5 variasi kecepatan kapal selam yaitu 5.93 knot, 10 knot, 11.85 knot, 13.92 knot, 16 knot dan 17.79 knot. Ketinggian biofouling yang digunakan pada simulasi adalah 2000 μm dengan 5 kondisi lambung yaitu lambung mulus (C0), semua ditempeli biofouling (C1), sepertiga bagian haluan (C2), sepertiga bagian tengah (C3) dan sepertiga bagian buritan (C4). Dari simulasi ditemukan bahwa biofouling menyebabkan kenaikan hambatan kapal selam dimana kenaikan paling besar terjadi pada kasus C1 dengan kenaikan rata-rata 45.21 %. Lokasi pertumbuhan biofouling yang menyebabkan kenaikan hambatan paling besar adalah bagian haluan dengan kenaikan rata-rata 23.32 %.
===================================================================================================================================
Biofouling is a marine biota that often grows on the hull of the ship, especially the hull under water. Biofouling in the hull of the ship causes an increase in the level of roughness of the hull and it can increase the ship’s resistance and fuel use. Biofouling also causes the turbulent flow around the hull. According to research, biofouling can cause an increase in ship resistance by 36.69% for surface ships. Biofouling also affects the resistance of submarines as ships operating below water. The DARPA Suboff submarine is a submarine that is often used in numerical analysis using computational fluid dynamics (CFD). To determine the effect of biofouling on resistance and flow pattern around the submarine’s hull due to biofouling, numerical simulations were performed using computational fluid dynamics (CFD) based on the Reynold Average Naviers Stokes (RANS) equation. Numerical simulations were carried out with 5 variations of submarine speed, namely 5.93 knots, 10 knots, 11.85 knots, 13.92 knots, 16 knots and 17.79 knots. The biofouling roughness that used in this simulation is 2000 μm with 5 hull conditions, namely smooth hull (C0), all with biofouling (C1), one third of the bow (C2), one third of the midship (C3) and one third of the stern (C4). From the simulation that biofouling causes an increase of submarine’s resistance. The largest increase is found in the case C1 with an average increase of 45.21%. The location of biofouling growth that causes the greatest increase in resistance is the bow section with an average increase of 23.32%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Computational Fluid Dynamics , Kapal Selam, Hambatan, RANS, Biofouling, Computational Fluid Dynamics , Submarine, Resistance, RANS, Biofouling
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	11 Dec 2025 08:18
Last Modified:	11 Dec 2025 08:18
URI:	http://repository.its.ac.id/id/eprint/128939

Actions (login required)

View Item