Edfi, Rahmat Diko (2018) Analisa Perubahan Gaya Angkat dan Hambatan Total Terhadap Variasi Aspect Ratio dan Winglet pada Sayap Kapal Wing in Surface Effect Menggunakan Aplikasi CFD. Undergraduate thesis, Institut Teknologi Seuluh Nopember Surabaya.
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Abstract
Pada proses desain kapal WISE sangat diperhatikan masalah gaya hambat serta gaya angkat yang terjadi saat kapal melaju dalam mode ground effect. Salah satu cara untuk mengurangi gaya hambat kapal WISE adalah dengan meningkatkan nilai aspek rasio sayap dan memodifikasi winglet. Untuk membuktikan hal tersebut, dalam tugas akhir ini dilakukan penelitian dalam bentuk simulasi Computational Fluid Dynamic (CFD) dengan cara membandingkan sayap dengan aspek rasio rendah AR=1 dengan aspek rasio sedang AR=3 serta memvariasikan sudut cant pada winglet. Hasil dari simulasi aspek rasio yang dilakukan menunjukan nilai gaya hambat dan gaya angkat yang berbeda di setiap variasi kecepatan. Kapal WISE dengan aspek rasio sedang AR=3 memiliki nilai gaya hambat yang lebih kecil dibandingkan dengan kapal WISE dengan aspek rasio rendah AR=1. Kapal WISE dengan aspek rasio sedang AR=3 memiliki nilai gaya angkat yang lebih besar dibandingkan dengan kapal WISE dengan aspek rasio rendah AR=1. Hasil simulasi yang dilakukan pada variasi sudut cant winglet kapal WISE menunjukan nilai gaya hambat dan gaya angkat yang berbeda di setiap variasi sudut. Kapal WISE dengan sudut cant winglet α=45° mempunyai gaya hambat yang lebih kecil dibandingkan dengan sudut cant winglet α=30° dan α=60°. Kapal WISE dengan sudut cant winglet α=30° mempunyai gaya angkat yang lebih besar dibandingkan dengan sudut cant winglet α=45° dan α=60°. ======================================================================================================
In the ship design process WISE is very concerned about the drag and lifting force that occurs when the ship drove in ground effect mode. One way to reduce the WISE ship's drag is by increasing the wing ratio and modifying the winglet value. To prove this matter, in this final project, research is done in the form of Computational Fluid Dynamic (CFD) simulation by comparing wing with low ratio aspect AR = 1 with medium ratio aspect AR = 3 and varying cant angle on winglet. The result of the simulated aspect ratio shows the value of different drag and lift styles at each speed variation. The WISE vessel with moderate aspect ratio AR = 3 has a smaller drag resistance value compared to the WISE vessel with low ratio aspect AR = 1. The WISE vessel with a moderate aspect ratio of AR = 3 has a greater lift lift value compared to the WISE vessel with low ratio aspect AR = 1. The simulation results performed on the angle variations of WISE ship canting winglet show the value of different drag and lift styles in each angle variation. The WISE vessel with the angle cant winglet α = 45 ° has a smaller drag force compared to the cant winglet angle α = 30 ° and α = 60 °. The WISE vessel with a cant winglet angle α = 30 ° has a greater lift force compared to cant winglet angles α = 45 ° and α = 60 °.t angle on winglet.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSPe 623.812 Edf a-1 3100018078339 |
| Uncontrolled Keywords: | WISE, Ground Effect, CFD, Aspek Rasio,Sudut cant, Winglet. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics 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 > VM751 Resistance and propulsion of ships |
| Divisions: | Faculty of Marine Technology (MARTECH) > Naval Architecture and Shipbuilding Engineering > 36201-(S1) Undergraduate Thesis |
| Depositing User: | Rahmat Diko Edfi |
| Date Deposited: | 01 Dec 2020 02:55 |
| Last Modified: | 01 Dec 2020 02:55 |
| URI: | http://repository.its.ac.id/id/eprint/56234 |
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