FLEET Velocimetry at 100 kHz in Hypersonic Flows

Adrian Nordstrom, Santiago Barrero, Arthur Dogariu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Femtosecond Laser Electronic Excitation and Tagging (FLEET) is an unseeded molecular tagging technique that has been demonstrated for hypersonic flow velocimetry in large scale facilities, typically operating at a 1 kHz repetition rate. This work presents a demonstration of FLEETat 100 kHz, enabling continuous measurement of high-speed flows with enhanced temporal resolution. Two-dimensional velocimetry was performed using a commercially available femtosecond laser system and a subsonic nitrogen flow at atmospheric pressure. The system was then deployed in a hypersonic wind tunnel at Texas A&M University. Mach 6 freestream velocity measurements as well as measurements within a turbulent boundary layer were obtained, showcasing the feasibility of high-frequency FLEET for measuring high-speed flows.

Original languageEnglish (US)
Title of host publicationAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624107238
DOIs
StatePublished - 2025
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025 - Orlando, United States
Duration: Jan 6 2025Jan 10 2025

Publication series

NameAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025
Country/TerritoryUnited States
CityOrlando
Period1/6/251/10/25

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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