Characterization of accurate launch vehicle unsteady aerodynamics is critical for component and secondary structure vibroacoustic design. For the National Aeronautics and Space Administration (NASA) Space Launch System (SLS), aeroacoustic environments have been derived primarily through sub-scale wind tunnel testing. Both optical techniques and high frequency pressure measurements have been utilized across multiple testing facilities and numerous vehicle configurations to develop a range of preliminary and detailed environments. As the vehicle has matured and evolved, the data collected from each subsequent configuration has allowed for comparison studies which isolate the effects of certain outer mold line (OML) features on measured fluctuating pressure levels. This paper presents observations on some of those effects for features which include abort system protuberances, various fairings geometries, interstage flanges, and multibody interactions between a central core and fall away boosters. These features, and the flow conditions produced by them, are broadly applicable to many launch vehicle configurations.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Space Launch System Aeroacoustic Wind Tunnel Test Results


    Contributors:

    Conference:

    AIAA Science and Technology Forum and Exposition ; 2019 ; San Diego, CA, United States


    Publication date :

    2019-01-07


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




    Space Launch System Aeroacoustic Wind Tunnel Test Results

    Steva, Thomas B. / Pollard, Victoria J. / Herron, Andrew et al. | AIAA | 2019


    Space Launch System Aeroacoustic Wind Tunnel Test Results

    Steva, Thomas B. / Pollard, Victoria J. / Herron, Andrew J. | AIAA | 2019




    AIAA-2019-3303: Space Launch System Aeroacoustic Wind Tunnel Test Results

    Steva, Thomas B. / Pollard, Victoria J. / Herron, Andrew et al. | British Library Conference Proceedings | 2019