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Establishment of steady separated flow over a compression–corner in a free–piston shock tunnel

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Abstract.

The time required to establish steady separated compression–corner flow is examined under hypervelocity conditions in a free-piston shock tunnel. This time is reasonably well described using previous perfect gas analyses. The results suggest that, provided the nozzle reservoir enthalpy is 20 MJ kg\(^{-1}\) or less, there is sufficient time to establish steady separated flow before driver gas contamination becomes a significant problem in the present facility.

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Authors and Affiliations

  1. Department of Aeronautics, Imperial College of Science, Technology and Medicine, London SW7 2BY, United Kingdom , , , , , , GB

    S.G. Mallinson

  2. School of Aerospace and Mechanical Engineering, University College, University of New South Wales, Australian Defence Force Academy, Canberra ACT 2600, Australia , , , , , , AU

    S.L. Gai & N.R. Mudford

Authors
  1. S.G. Mallinson
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  2. S.L. Gai
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  3. N.R. Mudford
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Received 13 November 1996 / Accepted 20 May 1997

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Mallinson, S., Gai, S. & Mudford, N. Establishment of steady separated flow over a compression–corner in a free–piston shock tunnel. Shock Waves 7, 249–253 (1997). https://doi.org/10.1007/s001930050080

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  • DOI: https://doi.org/10.1007/s001930050080

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