The Air Force Office of Scientific Research (AFOSR) has sponsored the Boundary Layer Transition (BOLT) Experiments to investigate hypersonic boundary layer transition on a low-curvature, concave surface with swept leading edges. This paper provides a review of aerothermodynamic ground test contributions by NASA Langley Research Center to the design of the BOLT flight experiment. Several test entries into the Langley Aerothermodynamics Laboratory 20-Inch Mach 6 Air Tunnel are discussed. Global surface heating distributions on subscale BOLT models were measured using either phosphor thermography or infrared thermography at a range of model attitudes and freestream Reynolds numbers. An initial test entry provided the first experimental measurements of transition on the BOLT geometry. A second test entry investigated the effects of distributed surface roughness along the swept leading edges. A third test entry provided an evaluation of the aeroheating environment on the aerodynamic fairings and a portion of the flight vehicle downstream of the BOLT experiment. These entries were intended to support the development and design of flight hardware and instrumentation for the BOLT flight experiment.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    NASA Langley Aerothermodynamic Ground Tests in Support of the Boundary Layer Transition (BOLT) Flight Experiment


    Contributors:


    Publication date :

    2020-09-02




    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    LaRC Aerothermodynamic Ground Tests in Support of BOLT Flight Experiment

    Berry, Scott A. / Mason, Michelle L. / Greene, Frank et al. | AIAA | 2019


    Aerothermodynamic Ground Tests in Support of the Boundary Layer Transition Flight Experiment

    Rieken, Elizabeth F. / Berry, Scott A. / Mason, Michelle L. et al. | AIAA | 2020


    LaRC Aerothermodynamic Ground Tests in Support of BOLT Flight Experiment

    Berry, Scott A. / Mason, Michelle L. / Greene, Francis A. et al. | NTRS | 2019


    Hypersonic Ground Tests In Support of the Boundary Layer Transition (BOLT) Flight Experiment

    Berridge, Dennis C. / McKiernan, Gregory / Wadhams, Tim P. et al. | AIAA | 2018


    Hypersonic Ground Tests In Support of the Boundary Layer Transition (BOLT) Flight Experiment (AIAA 2018-2893)

    Berridge, Dennis C. / McKiernan, Gregory / Wadhams, Tim P. et al. | British Library Conference Proceedings | 2018