Three-dimensional measurements of turbulent jet flames at kHz rate based on tomographic chemiluminescence

Xuesong Li, Lin Ma

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

2 Scopus citations

Abstract

This paper describes an approach to obtain three-dimensional (3D) imaging measurements in turbulent flames at kHz rate based on tomographic chemiluminescence (TC). Such measurement capability has been long desired to resolve the inherent 3D spatial structures and temporal dynamics of turbulent flames. In this work, five high-speed cameras were employed to simultaneously record projection measurements of chemiluminescence emissions of turbulent jet flames from five different view angles 1 and 2 kHz. These projection measurements were then used as the inputs for a tomography inversion algorithm to yield the 3D instantaneous spatial structures of the flames in a measurement region of ~16×16×16 cm. To our knowledge, this paper represents the first demonstration of instantaneous 3D combustion imaging across a sizable measurement volume at kHz.

Original languageEnglish (US)
Title of host publication52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102561
StatePublished - Jan 1 2014
Event52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014 - National Harbor, MD, United States
Duration: Jan 13 2014Jan 17 2014

Other

Other52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014
CountryUnited States
CityNational Harbor, MD
Period1/13/141/17/14

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    Li, X., & Ma, L. (2014). Three-dimensional measurements of turbulent jet flames at kHz rate based on tomographic chemiluminescence. In 52nd AIAA Aerospace Sciences Meeting - AIAA Science and Technology Forum and Exposition, SciTech 2014 American Institute of Aeronautics and Astronautics Inc..