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  1. No Access

    Article

    Subsonic Wind Tunnel Wall Interference Correction Method Using Data Mining and Multi-Layer Perceptron

    This study proposes a novel method for correcting subsonic wind tunnel wall interference based on data-driven approaches, which achieves parameter efficiency and can be applied without any additional measureme...

    Jongseo Bak, Myungsik Tai, Donghun Park… in International Journal of Aeronautical and … (2024)

  2. No Access

    Article

    Effects of Thermo-chemical Models on Linear Stability Analysis of Chemically Reacting Hypersonic Boundary Layers

    The effects of thermo-chemical models and assumptions on stability analysis is investigated using the linear stability theory (LST) framework. The LST is developed and validated to account for the real gas ef...

    Jaeyoung Park, Donghun Park in International Journal of Aeronautical and Space Sciences (2023)

  3. No Access

    Article

    Linear stability analysis of compressible vortex flows considering viscous effects

    This study investigates the stability of compressible swirling wake flows including the viscous effects using linear stability theory. A spatial stability analysis is performed to evaluate the influence of the...

    Hyeon** Lee, Donghun Park in Theoretical and Computational Fluid Dynamics (2022)

  4. No Access

    Article

    Effect of Shape of Two-Dimensional Smooth Hump on Boundary Layer Instability

    Effect of hump shape on boundary layer instability is investigated for incompressible, supersonic, and hypersonic speed regimes. Flat-plate boundary layers over a two-dimensional smooth hump of five different ...

    Donghun Park, Sejong Oh in International Journal of Aeronautical and Space Sciences (2020)

  5. No Access

    Article

    Study of effect of a smooth hump on hypersonic boundary layer instability

    Effect of a two-dimensional smooth hump on linear instability of hypersonic boundary layer is studied by using parabolized stability equations. Linear evolution of mode S over a hump is analyzed for Mach 4.5 a...

    Donghun Park, Seung O. Park in Theoretical and Computational Fluid Dynamics (2016)

  6. No Access

    Article

    Streamwise streaks and secondary instability in a two-dimensional bent channel

    Streamwise streaks generated from a pair of oblique waves and secondary instability of the streaks are studied in a two-dimensional bent channel. Nonlinear parabolized stability equations (NPSE) are employed t...

    Donghun Park, Seung O. Park in Theoretical and Computational Fluid Dynamics (2014)

  7. No Access

    Article

    Study of tonal noise behavior of an airfoil by using parabolized stability equations

    Tonal noise or whistle noise is an aerodynamic noise known to be generated due to boundary layer instability. The relation between the instability of Tollmien–Schlichting wave and the tonal noise was dealt wit...

    Donghun Park, Seung O. Park in Theoretical and Computational Fluid Dynamics (2013)