Abstract
Experimental values of complexes of aerodynamic derivatives were obtained in a wind tunnel and analyzed for subsonic flow of a passenger aircraft model with harmonic oscillations on the rolling and yawing angles. It was demonstrated that for near-critical angles of attack, the complexes of aerodynamic derivatives taken for rolling and yawing have a string dependency on the normalized oscillation frequency. It was proven that this dependency is driven by derivatives with respect to angular velocities and angular acceleration. A mathematical model for aerodynamic loads was developed; it can be applied for aircraft flight dynamic problems and has satisfactory approximation to experimental aerodynamic characteristics.
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Petoshin, V.I., Chasovnikov, E.A. Aerodynamic characteristics for a passenger aircraft model with harmonic oscillations on rolling and yawing angles at high angles of attack. Thermophys. Aeromech. 20, 39–48 (2013). https://doi.org/10.1134/S0869864313010046
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DOI: https://doi.org/10.1134/S0869864313010046