Control of shock-induced separation of a turbulent boundary layer using air-jet vortex generators

DP Ramaswamy, AM Schreyer - AIAA Journal, 2021 - arc.aiaa.org
An experimental analysis was carried out to study the control effectiveness and turbulence
behavior of an array of steady air-jet vortex generators on a shock-induced boundary-layer …

Newly identified principle for aerodynamic heating in hypersonic flows

Y Zhu, C Lee, X Chen, J Wu, S Chen… - Journal of Fluid …, 2018 - cambridge.org
Instability evolution in a transitional hypersonic boundary layer and its effects on
aerodynamic heating are investigated over a 260 mm long flared cone. Experiments are …

Turbulence in a hypersonic compression ramp flow

S Priebe, MP Martín - Physical Review Fluids, 2021 - APS
A hypersonic shock wave/turbulent boundary layer interaction (STBLI) is investigated using
direct numerical simulation (DNS). The geometry is an 8∘ compression ramp, and the flow …

Velocity measurements in a hypersonic flow using acetone molecular tagging velocimetry

A Andrade, ENA Hoffman, EJ LaLonde, CS Combs - Optics Express, 2022 - opg.optica.org
In the present work, a non-intrusive diagnostic technique known as molecular tagging
velocimetry was used to collect quantitative freestream velocity measurements in the Mach 7 …

Effects of jet-to-jet spacing of air-jet vortex generators in shock-induced flow-separation control

DP Ramaswamy, AM Schreyer - Flow, Turbulence and Combustion, 2022 - Springer
Experiments were carried out to assess the influence of spanwise spacing between adjacent
orifices of an air-jet vortex-generator (AJVG) array on their separation-control effectiveness …

Flow characterization of the UTSA hypersonic Ludwieg tube

ENA Hoffman, EJ LaLonde, A Andrade, I Chen… - Aerospace, 2023 - mdpi.com
The characterization of a hypersonic impulse facility is performed using a variety of methods
including Pitot probe scans, particle image velocimetry, and schlieren imaging to verify …

Effects of jet-injection-pipe length on the flow-control effectiveness of spanwise-inclined jets in supersonic crossflow

DP Ramaswamy, R Sebastian, AM Schreyer - Physical Review Fluids, 2023 - APS
Jets-in-supersonic-crossflow have many influential areas of technical applications, amongst
them the field of separation control when implemented as air-jet vortex generators (AJVGs) …

Separation control with elliptical air-jet vortex generators

DP Ramaswamy, AM Schreyer - Experiments in Fluids, 2023 - Springer
The flow organisation of air-jet vortex generators (AJVGs) of elliptical cross sections and
their control effectiveness on a 24∘-compression-ramp-induced shock-wave/boundary-layer …

Analytical model for predicting the length scale of shock/boundary layer interaction with curvature

J Cheng, K Yang, X Zheng, C Shi, C Zhu, Y You - Physics of Fluids, 2022 - pubs.aip.org
In practical aerodynamic problems, curved shock/boundary layer interaction (CSBLI) is more
frequently encountered than the canonical shock/boundary layer interaction (SBLI). Owing to …

[HTML][HTML] Hypersonic shock wave and turbulent boundary layer interaction in a sharp cone/flare model

T Fulin, D Junyi, LAI Jiang, SUN Dong… - Chinese Journal of …, 2023 - Elsevier
A direct numerical simulation of hypersonic Shock wave and Turbulent Boundary Layer
Interaction (STBLI) at Mach 6.0 on a sharp 7° half-angle circular cone/flare configuration at …