@inproceedings{132ccd22c17048e4b97d441b4e78c726,
title = "Time-gated ballistic-photon imaging of rocket sprays",
abstract = "Time-gated ballistic-photon imaging is employed to analyze the liquid-core breakup process in swirl-coaxial injectors for rocket spray applications. The experimental approach relies on an ultrafast laser source along with a picosecond time gate to discriminate against photons that undergo multiple scattering within the near-nozzle region. This approach reduces the relative contribution from diffuse photons and allows the formation of shadowgraph images that highlight liquid-core breakup processes within moderately dense sprays. Measurements are performed under a variety of gas and liquid flow rates, as well as for different injector configurations. Results indicate that ballistic-photon imaging achieves significant contrast enhancement and provides clear indication of liquid-core structures and continuous ligaments that emanate from the rocket injector. The effects of air flow and nozzle geometry on the breakup process are discussed and summarized.",
author = "Meyer, \{Terrence R.\} and Schaefer, \{Zane D.\} and Fuller, \{Joseph P.\} and Sukesh Roy and Danczyk, \{Stephen A.\} and Gord, \{James R.\}",
year = "2008",
doi = "10.2514/6.2008-1042",
language = "English (US)",
isbn = "9781563479373",
series = "46th AIAA Aerospace Sciences Meeting and Exhibit",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "46th AIAA Aerospace Sciences Meeting and Exhibit",
}