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Baroclinic Turbulence with Varying Density and Temperature

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4 Author(s)
Doyub Kim ; Graphics Lab., Carnegie Mellon Univ., Pittsburgh, PA, USA ; Seung Woo Lee ; Oh-young Song ; Hyeong-Seok Ko

The explosive or volcanic scenes in motion pictures involve complex turbulent flow as its temperature and density vary in space. To simulate this turbulent flow of an inhomogeneous fluid, we propose a simple and efficient framework. Instead of explicitly computing the complex motion of this fluid dynamical instability, we first approximate the average motion of the fluid. Then, the high-resolution dynamics is computed using our new extended version of the vortex particle method with baroclinity. This baroclinity term makes turbulent effects by generating new vortex particles according to temperature/density distributions. Using our method, we efficiently simulated a complex scene with varying density and temperature.

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Visualization and Computer Graphics, IEEE Transactions on  (Volume:18 ,  Issue: 9 )