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December 9, 2025Journal of Fluid MechanicsOpen Access

Turbulence phenomena in a shock train interaction

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Authors

JSJohn D. SullivanDGDatta V. Gaitonde

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Overview

Large eddy simulations reveal transport phenomena and boundary layer dynamics in shock train interactions.

Key Points

  • This work aims to analyze global flow changes across turbulent shock trains, particularly focusing on local shock wave interactions.
  • Wall-resolved large eddy simulations were performed.
  • A constant area, back-pressured channel configuration was used with an entry Mach number of 2.0.
  • Local changes due to shock wave/turbulent boundary layer interactions were systematically evaluated.
  • Identified a strongly separated region induced by the first STBLI affecting turbulence dynamics.
  • Observed cyclic attenuation and amplification of turbulent stresses down the shock train.
  • Noted that boundary layers approach a new equilibrium state with re-emergence of near-wall turbulence properties.

Cite This Study

Sullivan et al. (2025) studied this question.

synapsesocial.com/papers/69401d622d562116f28f8f80https://doi.org/10.1017/jfm.2025.10925
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