This paper demonstrates the usage of computational fluid dynamics to study the effects of pendulum motion dynamics of the NASAs Orion Multi-Purpose Crew Vehicle parachute system on the stability of the vehicles atmospheric entry and decent. Significant computational fluid dynamics testing has already been performed at NASAs Johnson Space Center, but this study sought to investigate the effect of bulk motion of the parachute, such as pitching, on the induced aerodynamic forces. Simulations were performed with a moving grid geometry oscillating according to the parameters observed in flight tests. As with the previous simulations, OVERFLOW computational fluid dynamics tool is used with the assumption of rigid, non-permeable geometry. Comparison to parachute wind tunnel tests is included for a preliminary validation of the dynamic mesh model. Results show qualitative differences in the flow fields of the static and dynamic simulations and quantitative differences in the induced aerodynamic forces, suggesting that dynamic mesh modeling of the parachute pendulum motion may uncover additional dynamic effects.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Dynamic Mesh CFD Simulations of Orion Parachute Pendulum Motion During Atmospheric Entry


    Beteiligte:

    Kongress:

    AIAA Aviation and Aeronautics Forum and Exposition (AIAA AVIATION 2016) ; 2016 ; Washington, DC, United States


    Erscheinungsdatum :

    2016-06-13


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Dynamic Mesh CFD Simulations of Orion Parachute Pendulum Motion During Atmospheric Entry

    Halstrom L. D. / Schwing A. M. / Robinson S. K. | NTIS | 2016


    PENDULUM MOTION IN MAIN PARACHUTE CLUSTERS

    Ray, Eric S. / Machín, Ricardo A. | British Library Conference Proceedings | 2015


    Pendulum Motion in Main Parachute Clusters

    Ray, Eric S. / Machin, Ricardo A. | NTRS | 2015


    Pendulum Motion in Main Parachute Clusters

    E. S. Ray / R. A. Machin | NTIS | 2015


    Pendulum Motion in Main Parachute Clusters

    Machin, Ricardo / Ray, Eric | AIAA | 2015