The Ares I A106 Liftoff/Transition Force and Moment Aerodynamics Database describes the aerodynamics of the Ares I Crew Launch Vehicle (CLV) from the moment of liftoff through the transition from high to low total angles of attack at low subsonic Mach numbers. The database includes uncertainty estimates that were developed using a detailed uncertainty quantification procedure. The Ares I Aerodynamics Panel developed both the database and the uncertainties from wind tunnel test data acquired in the NASA Langley Research Center s 14- by 22-Foot Subsonic Wind Tunnel Test 591 using a 1.75 percent scale model of the Ares I and the tower assembly. The uncertainty modeling contains three primary uncertainty sources: experimental uncertainty, database modeling uncertainty, and database query interpolation uncertainty. The final database and uncertainty model represent a significant improvement in the quality of the aerodynamic predictions for this regime of flight over the estimates previously used by the Ares Project. The maximum possible aerodynamic force pushing the vehicle towards the launch tower assembly in a dispersed case using this database saw a 40 percent reduction from the worst-case scenario in previously released data for Ares I.


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    Title :

    Detailed Uncertainty Analysis of the Ares I A106 Liftoff/Transition Database


    Contributors:

    Conference:

    29th AIAA Applied Aerodynamics Conference ; 2011 ; Honolulu, HI, United States


    Publication date :

    2011-06-27


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English


    Keywords :




    Detailed Uncertainty Analysis of the Ares I A106 Liftoff/Transition Database

    Hanke, J. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2011



    Liftoff and Transition Aerodynamics of the Ares I (A106) Launch Vehicle

    Capone, Francis / Paulson, John / Erickson, Gary | AIAA | 2011