State of the art boundary layer stability modeling capabilities are increasingly seeing application to entry flight vehicles. With the advent of user friendly and robust implementations of two-dimensional chemical nonequilibrium stability modeling with the STABL/PSE-CHEM software, the need for flight data to calibrate such analyses capabilities becomes more critical. Recent efforts to perform entry flight testing with the Orbiter geometry related to entry aerothermodynamics and boundary layer transition is allowing for a heightened focus on the Orbiter configuration. A significant advancement in the state of the art can likely be achieved by establishing a basis of understanding for the occurrence of boundary layer transition on the Orbiter due to discrete protruding gap fillers and the nominal distributed roughness of the actual thermal protection system. Recent success in demonstrating centerline two-dimensional stability modeling on the centerline of the Orbiter at flight entry conditions provides a starting point for additional investigations. The more detailed paper will include smooth Orbiter configuration boundary layer stability results for several typical orbiter entry conditions. In addition, the numerical modeling approach for establishing the mean laminar flow will be reviewed and the method for determining boundary layer disturbance growth will be overviewed. In addition, if actual Orbiter TPS surface data obtained via digital surface scans become available, it may be possible to investigate the effects of an as-flown flight configuration on boundary layer transition compared to a smooth CAD reference.


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    Titel :

    Orbiter Boundary Layer Transition Stability Modeling at Flight Entry Conditions


    Beteiligte:

    Kongress:

    48th AIAA Aerospace Sciences Meeting ; 2010 ; Orlando, FL, United States


    Erscheinungsdatum :

    2009-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    ORBITER BOUNDARY LAYER TRANSITION STABILITY MODELING AT FLIGHT ENTRY CONDITIONS

    Johnson, H. / Candler, G. / Bartkowicz, M. et al. | British Library Conference Proceedings | 2010


    Orbiter Boundary Layer Stability Analysis at Flight Entry Conditions

    Johnson, Heath / Candler, Graham | AIAA | 2010


    Orbiter Entry Boundary Layer Flight Testing

    Campbell, Charles / Garske, Michael / Kinder, Jerry et al. | AIAA | 2008


    Orbiter Entry Boundary Layer Flight Testing

    Campbell, C. / Garske, M. / Kinder, J. et al. | British Library Conference Proceedings | 2008


    Review of Orbiter Flight Boundary Layer Transition Data

    McGinley, C. / Berry, S. / Kinder, G. et al. | British Library Conference Proceedings | 2006