Coherent Anti-Stokes Raman Scattering Thermometry and CO Concentration Measurements in Plasmatron X

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

Abstract

We present coherent anti-Stokes Raman scattering thermometry and relative carbon monoxide concentration measurements acquired under low-pressure conditions in the Plasamtron X plasma wind-tunnel facility. Free-stream nitrogen CARS thermometry indicates a consistent mean free-stream temperature of T = 4973 ± 133 K, for pressures of 100-200 mbar at 55 kW plasma power. Wall-normal profiles of temperature and CO concentration are demonstrated within the boundary layer of an ablating graphite sample at the same 55 kW power at 200 mbar pressure and near-wall CARS spectra are successfully recorded at pressure as low as 100 mbar. The CARS instrument enables spatially precise measurements of mean temperature and CO to within ~50-100 m of the graphite surface.

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

ASJC Scopus subject areas

  • Aerospace Engineering

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