Prediction of the nonlinear aerodynamic characteristics of maneuvering missiles

1987 ◽  
Vol 24 (5) ◽  
pp. 394-402 ◽  
Author(s):  
Michael R. Mendenhall ◽  
Stanley C. Perkins ◽  
Daniel J. Lesieutre
Keyword(s):  
Aerodynamic Characteristics ◽  
Nonlinear Aerodynamic

scholarly journals An Improved Nonlinear Aerodynamic Derivative Model of Aircraft at High Angles of Attack

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Mi Baigang ◽  
Yu Jingyi
Keyword(s):  
Oscillation Amplitude ◽  
Angle Of Attack ◽  
Aerodynamic Characteristics ◽  
Higher Order ◽  
Initial Angle ◽  
Prediction Ability ◽  
Unsteady Aerodynamic ◽  
Reduced Frequency ◽  
High Angles Of Attack ◽  
Nonlinear Aerodynamic

The classical aerodynamic derivative model is widely used in flight dynamics, but its application is extremely limited in cases with complicated nonlinear flows, especially at high angles of attack. A modified nonlinear aerodynamic derivative model for predicting unsteady aerodynamic forces and moments at a high angle of attack is developed in this study. We first extend the higher-order terms to describe the nonlinear characteristics and then introduce three more influence parameters, the initial angle of attack, the reduced frequency, and the oscillation amplitude, to correct the constant aerodynamic derivative terms that have higher-order polynomials for these values. The improved nonlinear aerodynamic derivative model was validated by using the NACA 0015 airfoil and the F-18 model. The results show that the improved model has a higher prediction ability at high angles of attack and has the ability to predict the aerodynamic characteristics of other unknown states based on known unsteady aerodynamic data, such as the initial angle of attack, reduced frequency, and oscillation amplitude.

Nonlinear Aerodynamic Characteristics of Sounding Rockets J

1971 ◽  
Vol 8 (11) ◽  
pp. 1158-1160 ◽  
Author(s):  
JOHN D. NICOLAIDES ◽  
CHARLES W. INGRAM ◽  
DAVID D. TARKOWSKI
Keyword(s):  
Aerodynamic Characteristics ◽  
Sounding Rockets ◽  
Nonlinear Aerodynamic
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