Full-spectrum correlated k -distribution models are presented for bands of CN and CO for applications relevant to entry into atmospheres of Titan, Mars, Venus and flows over an ablating heat shield. A new emission-weighted full-spectrum k -distribution model is proposed as an improvement over the more popular Planck function-weighted full-spectrum k -distribution model. In the new reordering scheme, emission coefficient is used as the weight instead of the Planck-function. To exploit the full potential of the k -distribution method databasing schemes for k distributions are discussed and CPU time studies are presented. The accuracy of the new model and the database is demonstrated by solving the radiative transfer equation for two-cell problems and stagnation line flowfields of Titan’s Huygens spacecraft and a spacecraft entering into the Martian atmosphere.


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    Title :

    Modeling of Radiative Heat Transfer in Carbonaceous Atmospheres Using k -Distribution Models


    Contributors:

    Published in:

    Publication date :

    2013-03-07


    Size :

    9 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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