A theoretical model was solved numerically for simulating erosive-burning processes occuring inside the center perforation of an unslotted NOSOL-363 stick propellant. Results show that the erosive-burning phenomenon is caused by the enhanced heat feedback from the gas phase to solid phase resulting from the combined effect of increased turbulent mixing and reduction in flame stand-off distance from the burning surface. The real-time X-ray radiography system was demonstrated to be a powerful and reliable tool for nonintrusive measurements of instantaneous burning rates. A model was validated by experimental data in terms of time variation of internal diameter distributions. Thermal wave structures of NOSOL-363 stick propellants under erosive- and strand-burning conditions were measured by fine-wire thermocouples.


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    Title :

    Erosive-burning study of stick propellants


    Additional title:

    Untersuchung der erosiven Verbrennung von stabfoermigen Treibstoffen


    Contributors:
    Hsieh, W.H. (author) / Char, J.M. (author) / Zanotti, C. (author) / Kuo, K.K. (author)

    Published in:

    AIAA-Papers ; Jul ; 1-9


    Publication date :

    1987


    Size :

    9 Seiten, 18 Bilder, 17 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Erosive-burning study of stick propellants

    ZANOTTI, C. / KUO, K. | AIAA | 1987




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