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A unified particle model for fluid–solid interactions
Solenthaler B., Schläfli J., Pajarola R. Computer Animation and Virtual Worlds18 (1):69-82,2007.Type:Article
Date Reviewed: Nov 29 2007

In recent years, fluid simulation has become a hot topic in computer graphics. Several physically based methods have been proposed. Using these methods, amorphous phenomena, such as smoke, fire, clouds, and liquids, can be modeled and rendered so realistically that people can hardly tell whether they were recorded by a camera or simulated by a computer. However, simulating the interaction between a fluid and a solid is still a complicated problem. This paper proposes a unified, particle-based method to address it.

In computer graphics, two methods are often used for fluid simulation: the grid-based (Euler) method and the particle-based (Lagrangian) method. The former is mature, and has become prevalent. However, the latter has an advantage in that it can more easily model the complex microscopic interactions, for example, the mixture of multiple fluids that was demonstrated in a previous work. This paper goes further, and handles the fluid-solid interactions. The fluids are modeled with smoothed particle hydrodynamics (SPH). The elastic objects are modeled with an SPH method that is incorporated with an elastic force. The rigid objects are also modeled with an SPH model that is incorporated with the enforcement of rigid body motion. The paper also couples the temperature effects in order to model melting and solidification.

In summary, the authors have presented an SPH-based framework that extends the SPH method to model the interactions of fluids with elastic and rigid solid objects. The technique is sound. The method is also suited for applications in computer games and virtual environments.

Reviewer:  Zhe Fan Review #: CR134990 (0810-1014)
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Systems Theory (I.6.1 ... )
 
 
Physically Based Modeling (I.3.5 ... )
 
 
Visual (I.6.8 ... )
 
 
Computational Geometry And Object Modeling (I.3.5 )
 
 
Types Of Simulation (I.6.8 )
 
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