78th Annual Meeting of the APS Division of Fluid Dynamics (Nov 23 — 25, 2025)

P020: Shockwave Interaction of Rarefied Supersonic Twin Free Jets

Authors
  • Han June Park, Seoul Natl Univ
  • Han June Park , Seoul Natl Univ
  • Wontae Hwang , Institute of Engineering Research, Seoul National University, Seoul 08826, South Korea

This poster presents laser-induced fluorescence (LIF) visualizations of shockwave structures formed by twin supersonic free jets in a rarefied environment. By varying nozzle spacing and background pressure, we reveal how shockwaves interact, reflect, merge, and dissipate under low-pressure conditions. The images highlight unique features of rarefied jet interactions, offering insight into plume dynamics relevant to semiconductor processing and spacecraft propulsion.

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