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Issue No. 01 - January/February (2012 vol. 32)
ISSN: 0272-1716
pp: 22-33
Jishang Wei , University of California, Davis
Hongfeng Yu , Sandia National Laboratories
Ray W. Grout , National Renewable Energy Laboratory
Jacqueline H. Chen , Sandia National Laboratories
Kwan-Liu Ma , University of California, Davis
Simulations of turbulent flames have used particles to capture the dynamic behavior of combustion in next-generation engines. Each particle includes a history of its movement positions and changing thermochemical states. Analyzing such a set of many millions of particles helps scientists understand turbulence. A dual-space method enables effective visual analysis of both the spatial movement and attribute evolution of particles. A cluster-label-classify strategy categorizes particles' attribute evolution curves. Intuitive tools integrate users' domain knowledge to steer the classification. The dual-space method has been used to analyze particle data in combustion simulations and can be applied to other scientific simulations involving particle-data analysis. This video shows an expository movie that combustion scientists have used when discussing their simulation results with colleagues. This simulation employs visual analysis in both the physical space and phase space, with categorization driven by supervised learning.
visualization, simulation, modeling, machine learning, artificial intelligence, computer graphics, graphics and multimedia

J. H. Chen, J. Wei, K. Ma, R. W. Grout and H. Yu, "Visual Analysis of Particle Behaviors to Understand Combustion Simulations," in IEEE Computer Graphics and Applications, vol. 32, no. , pp. 22-33, 2011.
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