ANALISIS AIRFOIL NACA 0015 SEBAGAI HORIZONTAL STABILIZER DENGAN VARIASI JARAK GAP BERBASIS COMPUTATIONAL FLUID DYNAMICS

ADENAN, MOHAMMAD (2017) ANALISIS AIRFOIL NACA 0015 SEBAGAI HORIZONTAL STABILIZER DENGAN VARIASI JARAK GAP BERBASIS COMPUTATIONAL FLUID DYNAMICS. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada ekor pesawat terbang terdapat horizontal stabilizer yang berperan menjaga kestabilan pada arah longitudinal. Selain itu, fungsi horizontal stabilizer adalah mengatur pitching nose pesawat terbang dengan perubahan defleksi elevator. Elevator merupakan permukaan bergerak yang berada di tepi belakang horizontal stabilizer. Penelitian ini dilakukan untuk mengetahui pengaruh perubahan sudut defleksi elevator terhadap koefisien angkat. Secara kualitatif, analisa dilakukan dengan melihat kontur tekanan dan kontur kecepatan pada airfoil. Konfigurasi horizontal stabilizer yang diterapkan bertipe plain flap dengan variasi jarak gap sebesar 1,75 persen, 2 persen, dan 2,25 persen dari panjang chord. Hasil penelitian menunjukan bahwa penambahan defleksi elevator akan meningkatkan koefisien angkat. Saat sudut serang horizontal stabilizer 2° dengan defleksi elevator sebesar 20°, nilai koefisien angkat terbesar dihasilkan oleh variasi jarak gap 1,75 persen sebesar 0,93. Sedangkan ketika sudut serang horizontal stabilizer 10° dengan defleksi elevator sebesar 20°, koefisien angkat terbesar terjadi pada gap 2 persen sebesar 1,83. ================================================================================================================== At the tail of a plane, there is a horizontal stabilizer which maintained the longitudinal direction stability. Beside of that, the function of the horizontal stabilizer is regulating the aircraft pitching nose with elevator deflection changes. The elevator is a moving surfaces placed in the rear edge of the horizontal stabilizer. The purpose of this research is to determine the effect of the changes in the elevator deflection angle against the lift coefficient. Qualitatively, this analysis could’ve be done by looking at the contour of the pressure and velocity on the airfoil surface. The configuration of horizontal stabilizer applied in plain flap’s type with some variations of gap distance. The variations of gap distance are 1.75 percent, 2 percent, and of 2.25 percent of the chord length. The analysis result showed that the addition of an elevator deflection will be increase the lift coefficient. When the angle of attack of the horizontal stabilizer is 2° with 20° of elevator deflection, then the largest value of lift coefficient generated by gap distance variation 1.75 percent at 0.93. Meanwhile, when the angle of attack of the horizontal stabilizer is 10° with 20° of elevator deflection, then the largest lift coefficient occurs in gap 2 percent at 1.83.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Elevator, gap, horizontal stabilizer, koefisien angkat, plain flap.
Subjects: T Technology > T Technology (General)
Divisions: Faculty of Industrial Technology > Physics Engineering > (S1) Undergraduate Theses
Depositing User: - MOHAMMAD ADENAN
Date Deposited: 25 Jan 2017 07:18
Last Modified: 25 Jan 2017 07:18
URI: http://repository.its.ac.id/id/eprint/3223

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