ANALISIS AERODINAMIKA AKIBAT PERUBAHAN DIMENSI FUSELAGE PESAWAT SETARA SKYWALKER X8 NON-VTOL MENJADI VTOL

Farhandika, Fikri (2023) ANALISIS AERODINAMIKA AKIBAT PERUBAHAN DIMENSI FUSELAGE PESAWAT SETARA SKYWALKER X8 NON-VTOL MENJADI VTOL. Thesis thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

In an effort to convert the aircraft to VTOL, changes fuselage dimensions would be important. In making this change, it is important to consider a aerodynamics of aircraft. So it is necessary to do aerodynamic analysis to determine effect of changing a dimensions fuselage on aerodynamic performance. Fuselage modeling process uses CAD software, and aerodynamic analysis process uses ANSYS-CFX software. Simulation process, the assumption is that the flow is steady-state and air properties are assumed to be fixed or unchanged. Simulation is carried out when cruising with an air flow speed of 20 m/s. Results obtained from this study show that a dimensions fuselage for an aircraft equivalent to Skywalker X8 VTOL have changed in several parts, namely addition width fuselage from 380 mm to 410 mm and shape fuselage by enlarging the basins on the upper and lower fuselage. For length and height, fuselage uses the same dimensions. The aerodynamic characteristics aircraft fuselage equivalent to Skywalker X8 and fuselage equivalent to Skywalker X8 VTOL on ANSYS CFX show value fuselage lift equivalent to Skywalker X8 is greater than the value of the fuselage equivalent to Skywalker X8 VTOL with respective values of 1.9192 N and 1. 2383 N, then drag value aircraft equivalent to the Skywalker X8 VTOL is greater than drag value aircraft equivalent to Skywalker X8 with a value of 1.4707 N and 1.8961 N respectively, then L/D fuselage value aircraft equivalent to the Skywalker X8 is obtained is greater than value L/D aircraft fuselage equivalent Skywalker X8 VTOL with a value of 1.3050 and 0.6531 respectively, so it can be concluded that there is a decrease in aerodynamic efficiency performance of 49.95%.

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