Convective and radiative heating environments have been computed for a three-dimensional ellipsled configuration which would perform an aerocapture maneuver at Neptune. This work was performed as part of a one-year Neptune aerocapture spacecraft systems study that also included analyses of trajectories, atmospheric modeling, aerodynamics, structural design, and other disciplines. Complementary heating analyses were conducted by separate teams using independent sets of aerothermodynamic modeling tools (i.e. Navier-Stokes and radiation transport codes). Environments were generated for a large 5.50 m length ellipsled and a small 2.88 m length ellipsled. Radiative heating was found to contribute up to 80% of the total heating rate at the ellipsled nose depending on the trajectory point. Good agreement between convective heating predictions from the two Navier-Stokes solvers was obtained. However, the radiation analysis revealed several uncertainties in the computational models employed in both sets of codes, as well as large differences between the predicted radiative heating rates.


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    Titel :

    Preliminary Convective-Radiative Heating Environments for a Neptune Aerocapture Mission


    Beteiligte:

    Kongress:

    AIAA Atmospheric Flight Mechanics Conference and Exhibit ; 2004 ; Providence, RI, United States


    Erscheinungsdatum :

    2004-01-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Preliminary Convective-Radiative Heating Environments for a Neptune Aerocapture Mission

    Hollis, Brian / Wright, Michael / Olejniczak, Joseph et al. | AIAA | 2004


    AIAA-2004-5177 Preliminary Convective-Radiative Heating Environments for a Neptune Aerocapture Mission

    Hollis, B. / Olejniczak, J. / Wright, M. et al. | British Library Conference Proceedings | 2004


    Outer Planet Mission Studies Neptune Aerocapture

    Wercinski, Paul F. / Langhoff, Steven R. | NTRS | 1997


    Mission Trades for Aerocapture at Neptune

    Noca, Muriel A. / Bailey, Robert W. | NTRS | 2004


    Mission Trades for Aerocapture at Neptune

    Noca, Muriel / Bailey, Robert | AIAA | 2004