Aerodynamics of Blended Wing Body (BWB) Unmanned Aerial Vehicle (UAV) using Computational Fluid Dynamics (CFD) / Aman Mohd Ihsan Mamat … [et al.]

Mamat, Aman Mohd Ihsan and Mohd Nasir, Rizal Effendy and Wirachman Wisnoe, Wahyu Kuntjoro and Ngah, Zulkiflee (2008) Aerodynamics of Blended Wing Body (BWB) Unmanned Aerial Vehicle (UAV) using Computational Fluid Dynamics (CFD) / Aman Mohd Ihsan Mamat … [et al.]. Journal of Mechanical Engineering, 5 (2). pp. 15-26. ISSN 1823-5514

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Abstract

A thorough understanding of the aerodynamic behaviour of Blended Wing Body (BWB) aircraft is important because of its high lift to drag ratio. The use of Computational Fluids Dynamics (CFD) has accelerated aerodynamic analysis of BWB aircraft. Steady-state, three-dimensional CFD calculations were made of the BWB model using the Spalart-Allmaras turbulence model. Comparisons of aerodynamic characteristics such as lift coefficient, drag coefficient, pitching moment coefficient, pressure contours and Mach number contours were made both of two-dimensional aerofoil sections in the BWB model and a complete three-dimensional model. The lift coefficient distributions along the body and wing span were analyzed. The effect of changing the angles of attack and aerofoil profiles were investigated. The BWB design presented here has achieved an unprecedented capability in terms of sustainability of flight at high angle of attack, low parasite drag coefficient, efficient thrust required at optimum flight speed and acceptable margin of centre of gravity for trimmed flight at optimum speed without control surface interference.

Item Type: Article
Uncontrolled Keywords: Aerodynamics, Subsonic, Unmanned Aerial Vehicle, Computational Fluids Dynamics
Subjects: 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: Faculty of Mechanical Engineering
Depositing User: Staf Pendigitalan 5
Date Deposited: 01 Aug 2017 04:20
Last Modified: 01 Aug 2017 04:20
URI: http://ir.uitm.edu.my/id/eprint/17567

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