Numerical simulations were performed for a reference Martian entry test case using the nonequilibrium code URANUS. The code was further developed to allow for various chemical and thermal modelings of the nonequilibrium Martian entry flow. The flowfield around the reference vehicle was calculated for several chemical and thermal models of a carbon dioxide/nitrogen gas inflow mixture and compared to results available in the literature. A sensitivity analysis of the gas radiation and radiative heat flux were performed by employing the ESA’s plasma radiation database and the radiation transport algorithm HERTA on the computational fluid dynamics results. It was found that the radiation of the carbon dioxide molecule must be taken into consideration due to the large contribution to the overall radiation.


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    Title :

    Sensitivity Analysis of Nonequilibrium Martian Entry Flow to Chemical and Thermal Modeling


    Contributors:

    Published in:

    Publication date :

    2016-11-02


    Size :

    12 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English






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