Analisa Pengaruh Interceptor Dan Tunnel Propeller Terhadap Performa Kapal Cepat

Rais, Ryacudu Santoso and UNSPECIFIED (2025) Analisa Pengaruh Interceptor Dan Tunnel Propeller Terhadap Performa Kapal Cepat. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kapal cepat dengan planing hull dirancang untuk mencapai kecepatan tinggi dengan meminimalkan resistansi dan mengoptimalkan gaya angkat. Salah satu solusi yang digunakan untuk meningkatkan efisiensi hidrodinamika adalah penerapan tunnel propeller, yang berfungsi memperbaiki distribusi aliran menuju baling-baling. Namun, kontribusi tunnel propeller dalam mengurangi resistansi total kapal masih terbatas. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan interceptor yang dipasang pada konfigurasi tunnel propeller terhadap penurunan resistansi total kapal cepat. Variasi kedalaman interceptor yang digunakan meliputi 75, 60, 50, 35, dan 25 mm. Variasi tersebut digunakan untuk menganalisis penurunan resistansi paling optimum pada Fn 0.753; 0.847; 0.942; dan 1.005. Metode penelitian dilakukan dengan pendekatan eksperimental di Laboratorium Hidrodinamika BRIN dan simulasi numerik menggunakan Computational Fluid Dynamics (CFD). Hasil simulasi divalidasi dengan data eksperimen dari model lambung dengan dan tanpa interceptor. Hasil menunjukkan bahwa kedalaman interceptor 50 mm memberikan penurunan resistansi tertinggi sebesar 7,97% pada kecepatan jelajah. Sementara itu, kedalaman 35 mm memberikan pengurangan resistansi yang paling konsisten di seluruh variasi kecepatan, dengan rata-rata 6,52%. Efisiensi bahan bakar juga meningkat signifikan, dengan potensi penghematan biaya operasional hingga Rp 706.936 per jam saat menggunakan interceptor 50 mm.
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High-speed vessels with planing hull designs are engineered to achieve high velocities by minimizing resistance and optimizing lift force. One approach to enhancing hydrodynamic efficiency is the implementation of a tunnel propeller, which functions to improve the inflow distribution toward the propeller. However, the contribution of the tunnel propeller to reducing the vessel’s total resistance remains limited. This study aims to analyze the effect of using an interceptor installed in the tunnel propeller configuration on reducing the total resistance of a high-speed vessel. The interceptor depths varied at 75, 60, 50, 35, and 25 mm to determine the optimum reduction in resistance at Froude numbers 0.753, 0.847, 0.942, and 1.005. The research was conducted through experimental testing at the Hydrodynamics Laboratory of BRIN and numerical simulation using Computational Fluid Dynamics (CFD). The simulation results were validated with experimental data obtained from hull models with and without interceptors. The results showed that the 50 mm interceptor achieved the highest resistance reduction of 7.97% at cruising speed. Meanwhile, the 35 mm interceptor demonstrated the most consistent resistance reduction across all tested speeds, with an average reduction of 6.52%. Fuel efficiency was also significantly improved, with a potential operational cost saving of up to IDR 706,936 per hour when using the 50 mm interceptor.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CFD, interceptor, propeller, resistansi, tunnel,CFD, interceptor, propeller, resistance, tunnel.
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Rais Ryacudu Santoso
Date Deposited:	05 Aug 2025 06:53
Last Modified:	05 Aug 2025 06:53
URI:	http://repository.its.ac.id/id/eprint/127331

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