Inventions, Volume 9, Issue 5
2024 October - 20 articles
Cover Story: To alleviate the adverse effects of shock boundary layer interaction, active and passive control strategies have been explored. This research investigates the behavior of passive perforated plates applied to NACA0012 airfoils in cascade configurations. Six cascade setups, including a “no control” configuration, were manufactured with orifice sizes from 0.5 to 1.2 mm. A high-speed wind tunnel, with Schlieren optics and wall static pressure sensors, was used to analyze shock wave pattern changes. 3D numerical simulations using Ansys FLUENT continuously revealed that the perforated plates altered the shock structure, weakening a strong normal shock into an X-type shock. A 1% total pressure loss occurred, balancing reduced shock losses with increased viscous losses. Further research on geometric optimization is needed to enhance outcomes. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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