Generation of comprehensive longitudinal aerodynamic data using dynamic wind-tunnel simulation

Rajamurthy, MS (1997) Generation of comprehensive longitudinal aerodynamic data using dynamic wind-tunnel simulation. Journal of Aircraft, 34 (1). pp. 29-33. ISSN 0021-8669

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    Novel method of generating comprehensive longitudinal aerodynamic data of aircraft using a dynamic wind-tunnel simulation is presented.The method utilizes the motion and force responses of an aircraft model to control surface inputs to determine trim lift characteristics, longitudinal stability derivatives, and neutral point. In addition, large-amplitude lift and pitching moment responses13; characterizing the unsteady aerodynamic behavior are also generated using the same experimental setup. The new test method is demonstrated using a generic delta wing aircraft model with 1 DOF in pitch. The model pitch attitude and lift force responses to elevon dynamic inputs are measured and used to deduce longitudinal aerodynamic data. Comparison of these results with static test data and Datacom estimates shows good agreement.

    Item Type: Journal Article
    Additional Information: Copyright for this article belongs to AIAA
    Uncontrolled Keywords: Aerodynamic characteristics;Wind tunnel stability tests;Simulation;Longitudinal stability;Delta wings;Dynamic stability;Degrees of freedom
    Subjects: AERONAUTICS > Aerodynamics
    Division/Department: Flight Mechanics and Control Division
    Depositing User: M/S ICAST NAL
    Date Deposited: 26 Mar 2010
    Last Modified: 07 Jun 2010 15:56

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