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Comparative evaluation of unsteady aerodynamics modeling approaches at high angle of attack

SUN Hai-sheng1,ZHANG Hai-you2,LIU Zhi-tao2(1.Northwestern Polytechnical University,Xi′an 710000,China; 2.China Aerodynamics Research and Development Center,Mianyang 622662,China)  
Several unsteady aerodynamics mathematic models are modeled with account of fighter pitching maneuver including polynomial model,Fourier analysis model,state space model,difference equation model and fuzzy logic model.The model parameters are identified by wind tunnel test data of SDM.In the end of paper,it gives the differences about the mathematic models in the way of physical significance,applicability,precision and so on.
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