The Effect of Elevons Deflection to Aerodynamic Coefficients of A Tail-less Blended Wing-Body Planform / Rizal E. M. Nasir ...[et al.]

M. Nasir, Rizal E. and Basri, Ilyas H. and M. Ahmad, Aiman and A. Latif, Zulfazli A. and Wisnoe, Wirachman and Kuntjoro, Wahyu (2017) The Effect of Elevons Deflection to Aerodynamic Coefficients of A Tail-less Blended Wing-Body Planform / Rizal E. M. Nasir ...[et al.]. Journal of Mechanical Engineering (JMechE), SI 4 (4). pp. 151-166. ISSN 18235514

Abstract

Control surfaces play a big role in stabilizing and maneuvering an aircraft. This paper investigates the effect of control surface allocations, specifically deflection of four elevons on a BWB planform, on aerodynamic coefficients. Elevon allocations can be in a form of single-elevon deflection, two-elevon deflection in unison or in opposite deflection angles and four-elevon deflections in unison or in opposite deflection angles. Six aerodynamic coefficients which represent three forces and three moments in three axes are measured via wind tunnel experiment at 25 m/s. The wind tunnel model is of a flat, thin plate with planform similar to a typical stealth, flying-wing aircraft. Thirty-one (31) cases of different elevon deflections are tested at a fixed pitch angle of attack and zero angle of sideslip. The results shows that significant changes in drag, sideforce and lift forces are observed at almost all elevon deflection cases. The roll moment and pitch moment change with respect to elevon angle depends on the number of elevons utilized while yaw moment is not much affected by elevon deflections except for some cases.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
M. Nasir, Rizal E.
UNSPECIFIED
Basri, Ilyas H.
UNSPECIFIED
M. Ahmad, Aiman
UNSPECIFIED
A. Latif, Zulfazli A.
UNSPECIFIED
Wisnoe, Wirachman
UNSPECIFIED
Kuntjoro, Wahyu
UNSPECIFIED
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics > Aeronautics. Aeronautical engineering
T Technology > TL Motor vehicles. Aeronautics. Astronautics > Aeronautics. Aeronautical engineering > Mechanics of flight: Aerodynamics
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 18235514
Volume: SI 4
Number: 4
Page Range: pp. 151-166
Keywords: Aerodynamics, Blended Wing-Body, Control Surface
Date: 2017
URI: https://ir.uitm.edu.my/id/eprint/39162
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