An assessment of computational uncertainties is presented for numerical methods used by NASA to predict laminar, convective aeroheating environments for Mars entry vehicles. A survey was conducted of existing experimental heat-transfer and shock-shape data for high enthalpy, reacting-gas CO2 flows and five relevant test series were selected for comparison to predictions. Solutions were generated at the experimental test conditions using NASA state-of-the-art computational tools and compared to these data. The comparisons were evaluated to establish predictive uncertainties as a function of total enthalpy and to provide guidance for future experimental testing requirements to help lower these uncertainties.


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    Title :

    Assessment of Laminar, Convective Aeroheating Prediction Uncertainties for Mars Entry Vehicles


    Contributors:

    Conference:

    42nd AIAA Thermophysics Conference ; 2011 ; Honolulu, HI, United States


    Publication date :

    2011-06-27


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English