In this paper, the problems of collisionless flows over a cylinder or a sphere are investigated. New flowfield formulas for the specular surface scenario are obtained, whereas past formulas to the scenario of a diffuse surface are simplified. All formulas are evaluated with a computer code. Several simulations with the direct simulation Monte-Carlo are performed, and the results are compared with these analytical results. In general, the agreement is satisfactory. These analytical results are quite complex; however, they explicitly illustrate the effects from several parameters, such as the specific heat and temperature ratios, and several geometry factors.


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    Titel :

    Collisionless Gas Flow over a Cylinder and a Sphere


    Beteiligte:
    Cai, Chunpei (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2015




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :

    Klassifikation :

    Lokalklassifikation TIB:    770/7040
    BKL:    55.60 Raumfahrttechnik




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