This work investigates the aerodynamic interference among airplane components caused by rudder deflection for a typical turbo- prop aircraft geometry through the computational fluid dynamics technique. At no sideslip, an airplane is in symmetric flight conditions. The rudder deflection creates a local sideslip angle close to the vertical tailplane, and this effect is increased by fuselage and horizontal tail. Typical semiempirical methods, such as USAF DATCOM, do not take into account for these effects, proposing the same corrective parameters both for pure sideslip and rudder deflection conditions. Numerical analyses executed on several aircraft configurations with different wing and horizontal tailplane positions show that the interference factors are smaller than those predicted by the USAF DATCOM procedure, providing guidelines for a more accurate aircraft directional control analysis and hence rudder preliminary design.
Aerodynamic interference issues in aircraft directional control / Nicolosi, Fabrizio; DELLA VECCHIA, Pierluigi; Ciliberti, Danilo. - In: JOURNAL OF AEROSPACE ENGINEERING. - ISSN 0893-1321. - 28, Issue 1, Article number 04014048:January-February 2015(2015), pp. 1-7. [10.1061/(ASCE)AS.1943-5525.0000379]
Aerodynamic interference issues in aircraft directional control
NICOLOSI, FABRIZIO;DELLA VECCHIA, PIERLUIGI;CILIBERTI, DANILO
2015
Abstract
This work investigates the aerodynamic interference among airplane components caused by rudder deflection for a typical turbo- prop aircraft geometry through the computational fluid dynamics technique. At no sideslip, an airplane is in symmetric flight conditions. The rudder deflection creates a local sideslip angle close to the vertical tailplane, and this effect is increased by fuselage and horizontal tail. Typical semiempirical methods, such as USAF DATCOM, do not take into account for these effects, proposing the same corrective parameters both for pure sideslip and rudder deflection conditions. Numerical analyses executed on several aircraft configurations with different wing and horizontal tailplane positions show that the interference factors are smaller than those predicted by the USAF DATCOM procedure, providing guidelines for a more accurate aircraft directional control analysis and hence rudder preliminary design.File | Dimensione | Formato | |
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