Analisis Pengaruh Geometri Airfoil terhadap Drag and Lift Wingsail dan Konsumsi Bahan Bakar Kapal

Aulia, Nasywa Feby (2026) Analisis Pengaruh Geometri Airfoil terhadap Drag and Lift Wingsail dan Konsumsi Bahan Bakar Kapal. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penggunaan wingsail bermanfaat untuk meningkatkan efisiensi dan performa kapal. Wingsail dapat disesuaikan sudutnya untuk mengoptimalkan performa berdasarkan arah dan kecepatan angin. Selain memanfaatkan perubahan sudut pada wingsail, perlu diperhatikan juga mengenai desain terutama bentuk geometri dari wingsail itu sendiri. Desain wingsail utamanya dipengaruhi oleh bentuk penampangnya yaitu airfoil. Variasi bentuk airfoil mempengaruhi nilai gaya angkat dan gaya hambat yang dihasilkan wingsail. Identifikasi hasil gaya angkat dan gaya hambat wingsail dimulai dengan mencari besar gaya yang sama pada airfoil dalam bentuk 2D. Metode yang digunakan dapat berupa analisis model melalui Computer Fluid Dynamics (CFD). Untuk mengetahui perbandingan hasil dari bentuk airfoil yang berbeda, dilakukan analisis pada empat variasi bentuk airfoil. Analisis dimulai dengan pembuatan model 2D airfoil, pembuatan domain simulasi dan meshing. Airfoil dengan hasil perbandingan gaya angkat dan gaya hambat terbesar akan dilanjutkan pada pemodelan wingsail 3D. Model wingsail dan kapal yang ada akan diuji menggunakan CFD dengan metode yang sama pada model 2D airfoil. Didapatkan bahwa variasi airfoil memiliki pengaruh terhadap drag and lift coefficient wingsail dan didapatkan profile Airfoil Jowkowski 12% sebagai profile dengan CL/CD paling tinggi. Hasil simulasi wingsail secara 3D menunjukkan bahwa wingsail memberikan pengaruh pada hambatan kapal yaitu pengurangan hambatan sebesar 317.94 kN atau 25.02%. Dengan pemasangan wingsail berdasarkan profile airfoil yang optimum, didapatkan pengurangan bahan bakar kapal sebesar 0.68 ton/jam atau sebesar 25.39%.
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The use of wingsails is beneficial for improving a ship’s efficiency and performance. The angle of a wingsail can be adjusted to optimize performance based on wind direction and speed. In addition to adjusting the angle of the wingsail, attention must also be paid to its design, particularly its geometric shape. The design of a wingsail is primarily influenced by its cross-sectional shape, namely the airfoil. Variations in airfoil shape affect the lift and drag forces generated by the wingsail. Identifying the lift and drag forces of a wingsail begins by determining the equivalent forces on a 2D airfoil. The method used involves analyzing models via Computational Fluid Dynamics (CFD). To compare the results of different airfoil shapes, an analysis was conducted on four variations of airfoil shapes. The analysis began with the creation of a 2D airfoil model, the definition of the simulation domain, and meshing. The airfoil yielding the greatest lift-to-drag ratio will be used for 3D wingsail modeling. Existing wingsail and ship models will be tested using CFD with the same method applied to 2D airfoil models. It was found that the airfoil profile affects the drag and lift coefficients of the wingsail, and the Jowkowski 12% airfoil profile was found to have the highest CL/CD ratio. The results of the 3D wingsail simulation show that the wingsail reduces ship drag by 317.94 kN, or 25.02%. By installing the wingsail based on the optimal airfoil profile, ship fuel consumption is reduced by 0.68 metric tons per hour, or 25.39%.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	CFD, Geometry Airfoil, Wingsail, Fuel Oil Consumption, CFD, Geometri Airfoil, Wingsail, Konsumsi bahan bakar
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
Divisions:	Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis
Depositing User:	Nasywa Feby Aulia
Date Deposited:	04 Aug 2026 07:30
Last Modified:	04 Aug 2026 07:30
URI:	http://repository.its.ac.id/id/eprint/141267

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