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A review of unsteady aerodynamic modeling of aircrafts at high angles of attack
Received date: 2016-01-11
Revised date: 2016-03-07
Online published: 2016-04-05
Accurate unsteady aerodynamic models are the basis of control law design, flight dynamics analysis, and flight simulation of aircraft at high angles of attack. The advances in high angle-of-attack unsteady aerodynamic modeling are reviewed systematically. The developed modeling methods can be classed into two categories:mathematic methods and artificial intelligent methods. The mathematic models include those in the form of aerodynamic derivatives, nonlinear indicial response, internal state-space, differential equations, hybrid representation of nonlinear indicial response and internal state-space, flow incidence rate, etc. They are based on the understanding of unsteady flow phenomenon and mechanism. The intelligent methods, including fuzzy logic, neural networks, and support vector machines, avoid the complicated flow mechanism and are suitable to black-box system modeling especially. For individual aerodynamic models, their modeling ideas and methods and typical applications are described, and brief comments on their distinguishing features and limitations are put forward as well. Finally, the problems in current unsteady aerodynamic modeling researches and the future development directions are indicated.
WANG Qing , QIAN Weiqi , DING Di . A review of unsteady aerodynamic modeling of aircrafts at high angles of attack[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016 , 37(8) : 2331 -2347 . DOI: 10.7527/S1000-6893.2016.0072
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