Unsteadiness in hypersonic leading-edge separation

• Published in: Experiments in fluids Vol. 64; no. 1
• Main Authors: Karthick, S. K., Nanda, Soumya R., Cohen, Jacob
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2023; Springer Nature B.V
• Subjects: Diameters; Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics; Fineness; Fineness ratio; Flapping; Fluid flow; Fluid- and Aerodynamics; Free flow; Heat and Mass Transfer; Hypersonic Flight; Leading edges; Mach number; Modal analysis; Pulsation; Rayleigh scattering; Research Article; Reynolds number; Separation; Shear layers; Tunnel construction; Turbulence

Hypersonic leading-edge separation is studied toward understanding the varying shock-related unsteadiness with freestream Reynolds number ( 1.66 × 10 5 ≤ Re D ≤ 5.85 × 10 5 ) in the newly constructed hypersonic Ludwieg tunnel (HLT) at a freestream design Mach number of M ∞ = 6.0 . An axisymmetric fl...