“Visual simulation of smoke using overlapping grids” by Dobashi, Yamamoto and Nishita

  • ©Yoshinori Dobashi, Tsuyoshi Yamamoto, and Tomoyuki Nishita

  • ©Yoshinori Dobashi, Tsuyoshi Yamamoto, and Tomoyuki Nishita

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Title:

    Visual simulation of smoke using overlapping grids

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Abstract:


    Many methods for the visual simulation of natural phenomena, such as smoke and fire, have been proposed. These methods use a technique known as computational fluid dynamics. We propose a new method using overlapping grids for the visual simulation of fluids. Previously, the motion of the fluids was computed by using a single computational grid. When an object interacts with a fluid, the resolution of a grid must be sufficiently high to accurately represent the shape of the object that is voxelized by sampling the shape at the grid points. To address this problem, an adaptive method using a tetrahedral mesh has been proposed to represent the shape of the object accurately [Klinger et al. 2006]. However, this requires restructuring of the mesh when the objects move. The computational algorithm also becomes complex due to the uneven structure of the mesh. Our method addresses these problems by using multiple grids, and provides a practical and efficient way of handling objects interacting with fluids.

References:


    1. Klingner, B. M., Feldman, B. E., Chentanez, N., and O’Brien, J. F. 2006, Fluid animation with dynamic meshes, ACM Trans. on Graphics, 25, 3, 283–284.


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©Yoshinori Dobashi, Tsuyoshi Yamamoto, and Tomoyuki Nishita ©Yoshinori Dobashi, Tsuyoshi Yamamoto, and Tomoyuki Nishita

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