The effect of boundary layer on the separation distance in a magnetically driven shock tube

C.T. Chang

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    Abstract

    An investigation was made of the possible effect of the boundary layer on the lack of separation observed between the shock and the current sheath in a magnetically driven shock tube operating under discharge conditions of high voltage and low pressure. Since the calculated and the observed maximum displacement thickness in the pressure range investigated was around 1 mm only, it was concluded that the presence of a viscous layer at the wall cannot be of importance. Instead, the observed lack of separation is most likely due to the leakage of the compressed gas through the current-sheath, and to the diffusive nature of the driving current.
    Original languageEnglish
    Place of PublicationRoskilde, Denmark
    PublisherRisø National Laboratory
    Number of pages12
    ISBN (Print)8755003152
    Publication statusPublished - 1975
    SeriesDenmark. Forskningscenter Risoe. Risoe-R
    Number321
    ISSN0106-2840

    Keywords

    • Risø-R-321
    • Risø-321
    • Risø report 321

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