Pengaruh Rasio Camber Propeler Symmetrical Blade Terhadap Wake Fraction, Thrust Deduction Fraction dan Efisiensi Lambung Kapal Cepat

Rakhim, Maulana (2026) Pengaruh Rasio Camber Propeler Symmetrical Blade Terhadap Wake Fraction, Thrust Deduction Fraction dan Efisiensi Lambung Kapal Cepat. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengaruh variasi rasio Camber pada propeler menentukan performa hidrodinamik seperti kavitasi, distribusi tekanan, Thrust dan potensi kebisingan bawah air akibat vortisitas Trailing Edge (Mohammad Nouri and Mohammadi, 2018a) (Mahendra Indiaryanto Hendra et al., 2024a). Akan tetapi pada kedua penelitian sebelumnya tidak membahas mengenai pengaruh Wake Fraction dan Thrust Deduction Fraction pada variasi desain Camber. Dimana nilai Wake Fraction dan Thrust Deduction Fraction akan mempengaruhi nilai efisiensi lambung. Sehingga penelitian ini secara spesifik menganalisa pengaruh variasi rasio Camber pada propeler Symmetrical Blade Propeller terhadap parameter Wake Fraction, Thrust Deduction Fraction dan efisiensi lambung. Selanjutnya pada tahap desain, propeler akan dilakukan menggunakan perangkat lunak CAD, sedangkan analisa performa hidrodinamis dilakukan melalui simulasi Computational Fluid Dynamics (CFD) berbasis metode Reynolds-Averaged Navier-Stokes (RANS) dengan model turbulensi SST k-ω, melalui software ANSYS. Variasi rasio camber yang diuji mencakup 0%, 0.5%, 1%, dan 1.5%. Hasil analisis efisiensi lambung rasio Camber 1% (Vs = 28 Kn) menunjukkan kinerja interaksi lambung propeler paling optimal dengan nilai 1.012, dibandingkan dengan variasi rasio Camber 0%, 1.5%, dan 2.5%, yang secara berturut-turut memperoleh nilai 1.006, 0,999 dan 0,986. Berdasarkan hasil tersebut, dapat disimpulkan bahwa rasio Camber 1% memberikan performa propulsif yang optimal untuk kondisi operasional kapal.
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The variation of camber ratio in propellers significantly affects hydrodynamic performance, including cavitation behavior, pressure distribution, thrust generation, and the potential for underwater noise caused by trailing-edge vortices (Mohammad Nouri and Mohammadi, 2018b) (Mahendra Indiaryanto Hendra et al., 2024b) however, previous studies have not addressed the influence of camber design variations on wake fraction and thrust deduction fraction, both of which directly affect hull efficiency. Therefore, this study specifically analyzes the effect of camber ratio variations on a symmetrical blade propeller with respect to wake fraction, thrust deduction fraction, and hull efficiency. The propeller geometry was designed using Computer-Aided Design (CAD) software, while hydrodynamic performance was evaluated through Computational Fluid Dynamics (CFD) simulations based on the Reynolds-Averaged Navier–Stokes (RANS) method with the SST k–ω turbulence model. The investigated camber ratios include 0%, 0.5%, 1%, and 1.5%. The results show that the 1% camber ratio at service speed (Vs=28 knots) provides the most optimal hull–propeller interaction, yielding a hull efficiency value of 1.012, compared to camber ratios of 0%, 1.5%, and 2.5%, which produce hull efficiency values of 1.006, 0.999, and 0.986, respectively. Based on these results, it can be concluded that a 1% camber ratio delivers the most optimal propulsive performance under the vessel’s operational conditions

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Camber, Symetrical Blade Propeller, Thrust Deduction Factor, Wake Fraction, efisiensi lambung, CFD
Subjects:	T Technology > T Technology (General) > T57.62 Simulation T Technology > TJ Mechanical engineering and machinery V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM163 Hulls (Naval architecture) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36101-(S2) Master Theses
Depositing User:	Maulana Rakhim
Date Deposited:	02 Feb 2026 04:32
Last Modified:	02 Feb 2026 04:32
URI:	http://repository.its.ac.id/id/eprint/131468

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