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A particle-based method for viscoelastic fluids animation

Yuanzhang Chang, Kai Bao, Youquan Liu, Jian Zhu, Enhua Wu
University of Macau, Macao, China
In VRST ’09: Proceedings of the 16th ACM Symposium on Virtual Reality Software and Technology (2009), pp. 111-117

@conference{chang2009particle,

   title={A particle-based method for viscoelastic fluids animation},

   author={Chang, Y. and Bao, K. and Liu, Y. and Zhu, J. and Wu, E.},

   booktitle={Proceedings of the 16th ACM Symposium on Virtual Reality Software and Technology},

   pages={111–117},

   year={2009},

   organization={ACM}

}

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We present a particle-based method for viscoelastic fluids simulation. In the method, based on the traditional Navier-Stokes equation, an additional elastic stress term is introduced to achieve viscoelastic flow behaviors, which have both fluid and solid features. Benefiting from the Lagrangian nature of Smoothed Particle Hydrodynamics, large flow deformation can be handled more easily and naturally. And also, by changing the viscosity and elastic stress coefficient of the particles according to the temperature variation, the melting and flowing phenomena, such as lava flow and wax melting, are achieved. The temperature evolution is determined with the heat diffusion equation. The method is effective and efficient, and has good controllability. Different kinds of viscoelastic fluid behaviors can be obtained easily by adjusting the very few experimental parameters.
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