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Shaking Outside the Box to Advance Flight Research
A technique called Shake the Box predicts the positions of already-tracked particles and then corrects errors using image matching. The algorithms triangulate the positions of new particles in the measurement domain, enabling scientists to look at higher-particle densities with greater positional accuracy.
Briefs Photonics/Optics
sUAS-Based Payload Development and Testing for Quantifying Optical Turbulence
Understanding how atmospheric effects can impact operational conditions is important to the development of High Energy Laser (HEL) weapon systems.
News Test & Measurement
Driving the 2020 Corvette Stingray
Grasping the true beauty of Chevy’s new 2020 Corvette supercar demands a deep dig. You must venture beyond the exciting-to-a-fault exterior skin and the lavish stitched-leather, buffed-metal, and...
Briefs Sensors/Data Acquisition
Green’s Function Extraction from Atmospheric Acoustic Propagation
Understanding what affects acoustic waves propagating in the atmosphere is important for a variety of military applications.
News Weapons Systems
Lockheed Martin Announces Latest Hypersonic Progress at Le Bourget
Lockheed Martin Corporation successfully flight tested the AGM-183A Air-Launched Rapid Response Weapon (ARRW) on a U.S. Air Force Boeing B-52 Stratofortress. The captive...
Briefs Photonics/Optics
Stimulated Brillouin Scattering (SBS) Suppression and Long Delivery Fibers at the Multikilowatt Level with Chirped Seed Lasers
One obstacle in the scaling of high-power fiber lasers arises because of nonlinear effects (e.g., stimulated...
News Imaging
Lock-In Imaging System for Detecting Disturbances in Fluid
NASA's Langley Research Center has developed an aircraft-based turbulence and vortex detection system. Turbulence and vortices in the front-flight path are very dangerous for airplanes....
Articles Aerospace
RECAT Wake Turbulence Recategorization
Aviation safety is a fundamental concern for all stakeholders. The traveling public demands the highest safety standards, but also wants convenience and reliability at a low price with minimal...
Briefs Photonics/Optics
Computational Photonics in Laser Communications Through Clouds
This work explored the concept of creating a partially coherent laser beam consisting of an array of spatially overlapping or separated Gaussian beams with possible individual...
Briefs Physical Sciences
Characterizing Turbulent Wind Flow Near a Wind Barrier Using Sonic Anemometers
The Holloman High Speed Test Track (HHSTT) facility at Holloman Air Force Base (HAFB), NM, has a test section of 1.8 km that contains an artificial rain field...
Briefs Physical Sciences
Mixing and Combustion in Turbulent, High-Speed Flows
A collection of reports presents a detailed description of a research program that focused on fundamental investigations of mixing and combustion in turbulent subsonic and supersonic flows like those encountered in high-speed air-breathing aircraft engines. The research included close...
Briefs Physical Sciences
Liquid-Crystal-Particle Thermometry and Velocimetry System
A three-dimensional (3D) defocusing liquid-crystal-particle thermometry and velocimetry (3DDLCPTV) system has been designed and constructed (but not yet operated) for use in measuring...
Briefs Physical Sciences
System for Imaging Turbulent Combustion Flows
Asystem of scientific instrumentation and data-processing equipment has been assembled for research and education in turbulence, mixing, and chemical reactions (especially combustion) in...
Briefs Mechanical & Fluid Systems
Some Advances in Reducing Drag and Suppressing Convection
Theoretical and computational research has yielded some advances in the art of designing active feedforward and feedback controllers to suppress thermal convection and reduce drag (by...
Briefs Information Technology
Application of CFD to a Slender-Bodied, Finned Projectile
In an application of computational fluid dynamics (CFD), flow fields about a slender-bodied finned projectile and the resulting aerodynamic forces and moments on the projectile were...
Briefs Mechanical & Fluid Systems
Active Flow Control Demonstrated on “Airborne Wind Tunnel”
AFRL engineers, collaborating with aerospace manufacturers and other Air Force groups, recently demonstrated the first-ever airborne active flow control system when they manipulated...
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How Airbus is Using w-DED to 3D Print Larger Titanium Airplane Parts
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Battery Abuse Testing: Pushing to Failure
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A FREE Two-Day Event Dedicated to Connected Mobility
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2026 Battery & Electrification Summit (Online)
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Smarter Aerospace Manufacturing & Design with Digital Twins and...
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Cooling a New Generation of Aerospace and Defense Embedded Computing...
Transportation
Quiet, Please: NVH Improvement Opportunities in the Early Design Cycle