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Issue No.09 - Sept. (2012 vol.18)
pp: 1488-1495
Hyeong-Seok Ko , Graphics & Media Lab., Seoul Nat. Univ., Seoul, South Korea
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.
vortices, computational fluid dynamics, computer animation, flow instability, turbulence, vortex particles, baroclinic turbulence, varying density, varying temperature, volcanic scenes, motion pictures, complex turbulent flow, inhomogeneous fluid, complex motion, fluid dynamical instability, high-resolution dynamics, vortex particle, baroclinity term, turbulent effects, Mathematical model, Equations, Computational modeling, Nonhomogeneous media, Force, Computer graphics, Heating, vortex particle method., Fluid animation, variable density, turbulent flow
Hyeong-Seok Ko, "Baroclinic Turbulence with Varying Density and Temperature", IEEE Transactions on Visualization & Computer Graphics, vol.18, no. 9, pp. 1488-1495, Sept. 2012, doi:10.1109/TVCG.2011.264
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