Effect of Side Wind on the Directional Stability and Aerodynamics of a Hybrid Buoyant Aircraft

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 o...

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Bibliographic Details
Main Authors: Haque, Anwar U, Asrar, Waqar, Omar, Ashraf A, Sulaeman, Erwin, Ali, Mohamed J.S
Format: Conference Proceeding
Language:English
Subjects:
Aerodynamic stability
Aircraft
Aircraft performance
Aircraft stability
Airframes
Computational fluid dynamics
Computer simulation
Directional stability
Fluid flow
Fuselages
Incompressible flow
Mathematical models
Velocity coupling
Wind effects
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Summary: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.
ISSN:2261-236X
2274-7214
2261-236X
DOI:10.1051/matecconf/20164002006