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February 5, 2026AIAA Journal

Receptivity of a Transitional Shock/Boundary-Layer Interaction to Shock Oscillations in Hypersonic Flow

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Authors

ACAdriano CerminaraDLDeborah LevinVTVassilis Theofilis

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Overview

Direct numerical simulations reveal shock oscillations enhance wave transmission in turbulent boundary layers, indicating sensitivity to frequency.

Key Points

  • This work aims to understand how oscillating shocks affect the dynamics of transitional hypersonic boundary layers.
  • Conducted fully resolved direct numerical simulations at Mach 5.
  • Matched shock-oscillation frequency with predictions from earlier direct simulation Monte Carlo studies.
  • Analyzed post-shock wave generation in turbulent boundary layers downstream of separation bubbles.
  • Shock oscillations produced efficiently transmitted post-shock waves into the downstream turbulent boundary layer.
  • Higher shock-oscillation amplitudes led to enhanced wave propagation with sustained amplitude.
  • Frequencies predicted by DSMC studies promoted greater disturbance amplification, increasing amplitudes by 50%.

Cite This Study

Cerminara et al. (2026) studied this question.

synapsesocial.com/papers/69843371f1d9ada3c1fb0940https://doi.org/10.2514/1.j066062
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