TY - GEN
T1 - Three-dimensional measurements of turbulent jet flames at kHz rate based on tomographic chemiluminescence
AU - Li, Xuesong
AU - Ma, Lin
PY - 2014/1/1
Y1 - 2014/1/1
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84938317178
T3 - 52nd Aerospace Sciences Meeting
BT - 52nd Aerospace Sciences Meeting
PB - American Institute of Aeronautics and Astronautics Inc.
T2 - 52nd Aerospace Sciences Meeting 2014
Y2 - 13 January 2014 through 17 January 2014
ER -