WASKITA, YEPTA SATYA (2020) ANALISA PENGARUH SUDUT TEKUK (CANT) WINGLET PADA TIPE AIRFOIL (B737D-IL) MENGGUNAKAN METODE CFD. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
The aerodynamic engineering keep moving on develop the most efficient wing design. Winglet is masterpiece to reduce the vortex of air at the wing tips due to the phenomenon of air flow around the wing surface. Vortex will reduce wing effectivity toward angle of attack. In order for reach optimal CL/CD, its necessary to study aerodynamic performance by varying the cant angle. The objective of the analysis are to compare the aerodynamic characteristic and to investigate the performance of winglet by varying cant angle on winglet. This research was conducted using computational fluid dynamic and use model basewing, cant angle 15 deg and cant angle 60˚ relative to angle of attack 6˚-22˚. The basewing model, CL/CDmax is worth 3,6273 at angle of attack of 6° with an average decrease of 0,3500 for each increase in angle of attack. Model cant angle 15 deg model, CL/CDmax is worth 6,630 at angle of attack of 6° with an average decrease of 0,7179 for each increase in angle of attack. Model cant angle 60 deg model, CL/CDmax is worth 7,2921 at angle of attack of 6° with an average decrease of 0,7583 for each increase in angle of attack. Retrofit cant angle 15 deg increase CL/CDmax 83% at 6° angle of attack, while model 60 deg added value 101% at 6° angle of attack compare to its original design. Model cant angle 60 deg model also reduced the turbulence intensity by 1% and reduced the maximum turbulence strength when compared to the basewing model (without winglets). Keyword: winglet, cant angle, angle of attack, computational fluid dynamic Hingga saat ini rekayasa teknik aerodinamika tetap berjalan maju untuk mengembangkan desain sayap terbaik dan efisien. Winglet sebagai buah karya tersebut berfungsi untuk mengurangi pusaran udara pada ujung sayap akibat fenomena aliran udara di sekitar permukaan sayap. Pusaran ini akan mengurangi efektifitas sudut serang, sehingga gaya angkat akan berkurang. Agar winglet berfungsi optimal perlu dilakukan kajian mengenai performa aerodinamik. Salah satunya dengan variasi sudut tekuknya. Penelitian ini dilakukan menggunakan computational fluid dynamic dengan model basewing, sudut tekuk 15 deg, dan sudut tekuk 60 deg pada sudut serang 6˚-22˚. Model basewing, CL/CDmax bernilai 3,6273 pada sudut serang 6° dengan rata-rata penurunan 0,3500 pada setiap kenaikan sudut serang. Model sudut tekuk 15 deg, CL/CDmax bernilai 6,6308 pada sudut serang 6° dengan rata-rata penurunan 0,7179 pada setiap kenaikan sudut serang. Model sudut tekuk 60 deg, CL/CDmax bernilai 7,2921 pada sudut serang 6° dengan rata-rata penurunan 0,7583 pada setiap kenaikan sudut serang. Modifikasi sudut tekuk 15 deg menambah CL/CDmax sebesar 83% pada sudut serang 6°, sedangkan sudut tekuk 60 deg menambah CL/CDmax sebesar 101% pada sudut serang 6°. Penambahan model sudut tekuk 60 deg juga mengurangi intensitas turbulensi 1% dan mengurangi luasan kekuatan maksimum turbulensi jika dibandingkan dengan model basewing (tanpa winglet). Kata kunci: winglet, sudut tekuk, sudut serang, computational fluid dynamic
| Item Type: | Thesis (S1) |
|---|---|
| Call Number CD: | FT/MSN. 20 039 |
| NIM/NIDN Creators: | 41318120026 |
| Uncontrolled Keywords: | winglet, sudut tekuk, sudut serang, computational fluid dynamic |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin 600 Technology/Teknologi > 650 Management, Public Relations, Business and Auxiliary Service/Manajemen, Hubungan Masyarakat, Bisnis dan Ilmu yang Berkaitan > 653 Shorthand/Penulisan Cepat, Penulisan dengan Tangan > 653.3 Machine Systems/Sistem Mesin |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Dede Muksin Lubis |
| Date Deposited: | 02 Nov 2021 03:27 |
| Last Modified: | 03 Sep 2022 03:32 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/49951 |
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