Open AccessTracking flame base movement and interaction with ignition kernels using topological methods
Author(s) -
Ajith Mascarenhas,
Ray Grout,
Chun Sang Yoo,
J H Chen
Publication year - 2009
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/180/1/012086
Subject(s) - merge (version control) , base (topology) , segmentation , ignition system , tracking (education) , topology (electrical circuits) , laminar flame speed , flame structure , premixed flame , combustion , computer science , materials science , biological system , mechanics , algorithm , physics , chemistry , mathematics , mathematical analysis , artificial intelligence , thermodynamics , parallel computing , combinatorics , combustor , biology , psychology , pedagogy
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.close1