Aeroassisted trajectories can be used to minimize spacecraft propellant requirements for near-Earth orbital operations. A review of spacecraft flight mechanics, aerothermodynamics, and energy balances relevant for near-term designs of reusable upper stages is presented. A reusable upper stage is modeled by a rigid tank containing liquid propellant with some propellant fraction undergoing phase change, while in an a planar aeroassist trajectory about an idealized Earth. Shortcomings of classical analyses are illustrated to motivate models with increased fidelity and complexity. A new method is proposed and models the material response of the spacecraft under aerothermal loading, that couples the simplicity of classical methods with a three-dimensional scheme that captures unsteady thermal gradients in the material. The new method is shown to provide similar solutions to a fully discrete case with a significant reduction in computational time.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Unsteady Heat Transfer for Pressure Vessels in Atmospheric Flight at Orbital Velocities


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    2019-07-19


    Format / Umfang :

    18 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Global Unsteady Pressure Fields Over Turrets In-Flight

    De Lucca, Nicholas G. / Gordeyev, Stanislav / Jumper, Eric J. | AIAA | 2015


    Fin Unsteady Surface Pressure Evaluation Due to Buffeting Based on Measured Fluctuating Velocities

    Breitsamter, C. / Laschka, B. | British Library Online Contents | 1996


    Unsteady stagnation-point heat transfer

    Sparrow, E. M. | TIBKAT | 1959


    Unsteady Heat Transfer in Engines

    Bennethum, James E. / Uyehara, O.A. / Myers, P.S. et al. | SAE Technical Papers | 1961


    Unsteady Conjugate Heat Transfer Modeling

    He, L. | Online Contents | 2011