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Published Articles >> Table of Contents >> Abstract
January/February 2007 (Vol. 13, No. 1)
pp. 179-189
Visual Simulation of Heat Shimmering and Mirage
Ye Zhao, IEEE
Yiping Han
Zhe Fan
Feng Qiu
Yu-Chuan Kuo
Arie E. Kaufman, IEEE
Klaus Mueller, IEEE
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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TVCG.2007.24
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Abstract—We provide a physically-based framework for simulating the natural phenomena related to heat interaction between objects and the surrounding air. We introduce a heat transfer model between the heat source objects and the ambient flow environment, which includes conduction, convection, and radiation. The heat distribution of the objects is represented by a novel temperature texture. We simulate the thermal flow dynamics that models the air flow interacting with the heat by a hybrid thermal lattice Boltzmann model (HTLBM). The computational approach couples a multiple-relaxation-time LBM (MRTLBM) with a finite difference discretization of a standard advection-diffusion equation for temperature. In heat shimmering and mirage, the changes in the index of refraction of the surrounding air are attributed to temperature variation. A nonlinear ray tracing method is used for rendering. Interactive performance is achieved by accelerating the computation of both the MRTLBM and the heat transfer, as well as the rendering on contemporary graphics hardware (GPU).
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 Additional Information
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Index Terms- Heat transfer, lattice Boltzmann model, thermal flow dynamics, heat shimmering, mirage, GPU acceleration, nonlinear ray tracing.
Citation:
Ye Zhao, Yiping Han, Zhe Fan, Feng Qiu, Yu-Chuan Kuo, Arie E. Kaufman, Klaus Mueller,
"Visual Simulation of Heat Shimmering and Mirage,"
IEEE Transactions on Visualization and Computer Graphics,
vol. 13,
no. 1,
pp. 179-189,
Jan/Feb,
2007
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