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Yoo, Chun Sang
Combustion & Propulsion Lab
Research Interests
  • Numerical turbulent combustion

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Tracking flame base movement and interaction with ignition kernels using topological methods

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Title
Tracking flame base movement and interaction with ignition kernels using topological methods
Author
Mascarenhas, A.Grout, R. W.Yoo, Chun SangChen, J. H.
Keywords
Auto-ignition; Flame stabilization; Jet flames; Radical concentration; Segmentation and tracking; Segmentation methods; Topological methods; Tracking method
Issue Date
2009
Publisher
IOP PUBLISHING LTD
Citation
SCIDAC 2009: SCIENTIFIC DISCOVERY THROUGH ADVANCED COMPUTING, v.180, no.1, pp.1 - 7
Abstract
We segment the stabilization region in a simulation of a lifted jet flame based on its topology induced by the YOH field. Our segmentation method yields regions that correspond to the flame base and to potential auto-ignition kernels. We apply a region overlap based tracking method to follow the flame-base and the kernels over time, to study the evolution of kernels, and to detect when the kernels merge with the flame. The combination of our segmentation and tracking methods allow us observe flame stabilization via merging between the flame base and kernels; we also obtain YCH2O histories inside the kernels and detect a distinct decrease in radical concentration during transition to a developed flame.
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DOI
http://dx.doi.org/10.1088/1742-6596/180/1/012086
ISSN
1742-6588
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