Implementation of self-aligned focusing Schlieren for hypersonic boundary layer measurements

JL Hill, MP Borg, EK Benitez, CL Running… - AIAA SciTech 2023 …, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-2438. vid A self-aligned focusing
schlieren (SAFS) apparatus based on a recently published design is implemented for the …

Self-aligned focusing schlieren in optically constrained environments

BF Bathel, MT Boyda, JM Weisberger - Applied Optics, 2024 - opg.optica.org
A method is presented to acquire self-aligned focusing schlieren (SAFS) images when the
optical axis of the instrument is positioned at a non-normal incidence angle to the …

Nosetip bluntness effects on a cone-cylinder-flare at mach 6

EK Benitez, MP Borg, JL Hill - Experiments in Fluids, 2024 - Springer
A cone-cylinder-flare model with sharp and blunt nosetips was tested at the AFRL Mach-6
Ludwieg Tube at a 0\(^{\circ}\) angle of attack. Surface-pressure fluctuation measurements …

A Numerical Investigation on the Origin Mechanisms for Heat Streaks on Swept Geometries in Hypersonic Flows

BJ Morreale, J Smotzer, G Lakin… - … FORUM AND ASCEND …, 2024 - arc.aiaa.org
High-fidelity computational fluid dynamics of hypersonic flow over a swept wedge model
were performed to investigate the origin mechanisms of heat streaks emanating from the …

Withdrawn: An Experimental Investigation on the Origin of Heat Streaks for Swept Geometries in Hypersonic Flows

GW Lakin, J Currin, S Garza, BJ Morreale… - … FORUM AND ASCEND …, 2024 - arc.aiaa.org
A simplified, swept-wedge model was tested in the Actively Controlled Expansion (ACE)
Hypersonic Tunnel at Texas A&M University over a range of freestream conditions to isolate …

A Preliminary Assessment of Step Effects on the BOLT Geometry in Mach 6 Flow

CF Scott, S Berry, FA Greene, K Basore… - AIAA AVIATION FORUM …, 2024 - arc.aiaa.org
An infrared thermography measurement technique has been installed in the Langley
Aerothermodynamic Laboratory. The system is calibrated for use with commercially …

Flat-BOLT Surrogates for Investigating Second-Mode and Crossflow Instabilities

SH Wernz - AIAA AVIATION 2023 Forum, 2023 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2023-3442. vid This paper discusses a
computational analysis of the laminar flow over the “Flat BOLT”, ie, a shaped flat plate that is …

Visualization of Swept Shock Boundary Layer Interaction Using Self-Aligned Focusing Schlieren

ZB Riley, K Brouwer, T Beberniss, JL Hill - AIAA SCITECH 2025 Forum, 2025 - arc.aiaa.org
The AFRL Structural Sciences Center recently completed a series of experiments in the
AFRL Research Cell 19 wind tunnel examining planar and swept shock boundary layer …