Analysis Effect Of Pre Swirl Stator Duct Naca Profile On Propulsive Efficiency Using Cfd

Husni, M. Dzaki Al (2026) Analysis Effect Of Pre Swirl Stator Duct Naca Profile On Propulsive Efficiency Using Cfd. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

This study investigates the effect of a Pre Swirl Stator Duct (PSSD) using NACA 2418 and NACA 2412 profiles on the propulsive performance of a tanker vessel through Computational Fluid Dynamics (CFD) simulation. Three PSSD configurations were evaluated and compared against the barehull condition through open water, resistance, and self-propulsion tests. The results show that although the open water efficiency ηb of the PSSD configurations is slightly lower than that of the barehull (0.478, 0.468, and 0.458 for PSSD 1, 2, and 3, respectively, versus 0.480 for the barehull at 1.233 m/s), the hull efficiency ηH increases for all PSSD configurations, reaching 1.184 for PSSD 1, 1.236 for PSSD 2, and 1.266 for PSSD 3, compared with 1.171 for the barehull. This increase in hull efficiency results from more favourable inflow conditions and reduced thrust loss caused by hull-propeller interaction, so that the overall propulsive efficiency ηD increases from 0.562 for the barehull to 0.566, 0.578, and 0.580 for PSSD 1, 2, and 3, respectively. PSSD 3 with the NACA 2412 profile provides the most significant enhancement in propulsive efficiency and hull-propeller interaction. Flow field analysis further confirms that PSSD 3 produces the most notable reduction in tangential velocity (swirl), leading to a more uniform axial and radial inflow toward the propeller compared to the barehull and the other configurations. These findings indicate that installing a Pre Swirl Stator Duct with an appropriately selected NACA profile can effectively improve propulsion performance and wake uniformity for full-form tanker vessels, supporting its potential application as an energy-saving device.
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Penelitian ini menganalisis pengaruh pemasangan Pre Swirl Stator Duct (PSSD) dengan profil NACA 2418 dan NACA 2412 terhadap performa propulsi kapal tanker menggunakan simulasi Computational Fluid Dynamics (CFD). Tiga konfigurasi PSSD dievaluasi dan dibandingkan dengan kondisi barehull melalui pengujian open water, resistance, dan self-propulsion. Hasil penelitian menunjukkan bahwa meskipun efisiensi open water ηb pada konfigurasi PSSD sedikit lebih rendah dibandingkan barehull masing-masing 0.478, 0.468, dan 0.458 untuk PSSD 1, 2, dan 3, dibandingkan 0.480 pada barehull pada kecepatan 1.233 m/s, efisiensi hull (ηH) justru meningkat pada seluruh konfigurasi PSSD, yaitu 1.184 untuk PSSD 1, 1.236 untuk PSSD 2, dan 1.266 untuk PSSD 3, dibandingkan 1.171 pada barehull. Peningkatan efisiensi hull ini disebabkan oleh membaiknya kondisi inflow akibat interaksi hull-propeller, sehingga efisiensi propulsi keseluruhan ηD meningkat dari 0.562 pada barehull menjadi 0.566, 0.578, dan 0.580 pada PSSD 1, 2, dan 3. PSSD 3 dengan profil NACA 2412 memberikan peningkatan efisiensi propulsi dan interaksi hull-propeller yang paling signifikan. Analisis aliran juga menunjukkan bahwa PSSD 3 memberikan reduksi kecepatan tangensial swirl yang paling baik, sehingga distribusi aliran aksial dan radial menuju propeller menjadi lebih seragam dibandingkan barehull maupun konfigurasi lainnya, menunjukkan bahwa pemasangan Pre Swirl Stator Duct dengan profil NACA yang sesuai dapat secara efektif meningkatkan performa propulsi dan keseragaman wake pada kapal tanker sehingga berpotensi diterapkan sebagai perangkat hemat energi (energy-saving device).

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CFD, Pre Swirl Stator, Propulsive Efficiency CFD, Effisiensi Propuulsi, Pre Swirl Stator
Subjects:	V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM161 Ships--Hydrodynamics V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM751 Resistance and propulsion of ships V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM753 Propellers
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	M. Dzaki Al Husni
Date Deposited:	04 Aug 2026 07:55
Last Modified:	04 Aug 2026 07:55
URI:	http://repository.its.ac.id/id/eprint/142563

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