9034

Simulation of a flowing snow avalanche using molecular dynamics

Denizhan Gucer, Halil Bulent Ozguc
Department of Computer Engineering, Bilkent University, Ankara, 06800, Turkey
Turkish Journal of Electrical Engineering & Computer Sciences, 2013

@article{denizhan2013simulation,

   title={Simulation of a flowing snow avalanche using molecular dynamics},

   author={Denizhan, GUC and UC, Halil B{"u}lent OZG},

   year={2013}

}

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This paper presents an approach for modelling and simulation of a flowing snow avalanche, which is formed of dry and liquefied snow that slides down a slope, by using molecular dynamics and discrete element method. A particle system is utilized as a base method for the simulation and marching cubes with real-time shaders are employed for rendering. A uniform grid based neighbour search algorithm is used for collision detection for inter-particle and particle-terrain interactions. A mass-spring model of collision resolution is employed to mimic compressibility of snow and particle attraction forces are put into use between particles and terrain surface. In order to achieve greater performance, general purpose GPU language and multi-threaded programming is utilized for collision detection and resolution. The results are displayed with different combinations of rendering methods for the realistic representation of the flowing avalanche.
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