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Effect of side wind on the directional stability and aerodynamics of a hybrid buoyant aircraft

UlHaque, Anwar and Asrar, Waqar and Omar, Ashraf Ali and Sulaeman, Erwin and Ali, JS Mohamed (2016) Effect of side wind on the directional stability and aerodynamics of a hybrid buoyant aircraft. In: 2015 International Conference on Mechanical Engineering and Electrical Systems (ICMES 2015), 16th-18th December 2015, Singapore.

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Abstract

Directional stability characteristics explain the capabilities of a hybrid buoyant aircraft’s performance against the side wind, which induces flow separation that is chaotic in nature and may lead to oscillations of the aerodynamic surfaces. A numerical study is carried out to estimate the effect of side wind. The boundary conditions for the computational domain are set to velocity inlet and pressure outlet. Due to the incompressible flow at the cruise velocity, the density is taken to be constant. For these steady state simulations, the time is discretized in first order implicit and the SIMPLE scheme is employed for pressure velocity coupling alongwith k-ω SST model. Based on the results obtained so far, it is concluded that voluminous hybrid lifting fuselage is the major cause of directional.

Item Type: Conference or Workshop Item (Invited Papers)
Additional Information: 4277/49371
Uncontrolled Keywords: Hybrid buoyant aircraft
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL500 Aeronautics
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Depositing User: Prof. Waqar Asrar
Date Deposited: 30 Mar 2016 14:23
Last Modified: 22 Oct 2017 08:40
URI: http://irep.iium.edu.my/id/eprint/49371

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