The aerodynamic coefficients of Apollo capsule are calculated using DSMC (Direct Simulation Monte Carlo) solver SMILE (Statistical Modeling In Low-density Environment). In comparison with the data predicted by NASA, the results using SMILE agree well with the reference data. the aerodynamic characteristics of an orbital block which operates on the high altitude in the free molecule regime are also predicted. For the nominal flow conditions, the predicted aerodynamic force is very small since the dynamic pressure is exceedingly low. And the additional aerodynamic coefficients for the analysis of the attitude control are presented as the angle of attack and the side slip angle vary from +45 degree to -45 degree of the nominal angle. This study to predict the aerodynamic characteristics of the flying objects in the rarefied flow environment will be useful for the calculation of the satellite lifetime and especially, the prediction of the aerodynamic characteristics for the reentry object.


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    Titel :

    A study on the prediction of the aerodynamic characteristics of an orbital block of a launch vehicle in the rarefied flow regime using the DSMC approach and the parallel computation


    Weitere Titelangaben:

    Berechnung der aerodynamischen Eigenschaften der Orbitalstufe einer Rakete in molekularer Gasströmung mit direkter paralleler Monte-Carlo-Simulation


    Beteiligte:
    Kim, Younghoon (Autor:in) / Choi, YoungIn (Autor:in) / Ok, Honam (Autor:in) / Kim, Insun (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    8 Seiten, 7 Bilder, 2 Tabellen, 5 Quellen





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





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