Volume : IV, Issue : XII, December - 2015

Smoothed Particle Hydrodynamics Simulation

Deepa S. Kadam, Ram B. Joshi

Abstract :

A parallel and interactive SPH simulation method on the GPU using CUDA has been proposed in this paper which allows for high quality visualization. SPH is easily parallelizable, as the interaction between two particles is independent of the others. However, with a large number of particles there would be a significant amount of computation involved to calculate the interaction between the particles, which is needed to obtain a realistic–looking simulation. A new, efficient rendering pipeline that allows for high quality visualization at very high frame rates is presented. Spatial indexing and searching is based on Z–indexing that eliminates use of buckets and allows determine the neighborhood set of a particle in constant time without wasting space. For visualizing the SPH simulation, a new rendering pipeline is used. The rendering pipeline consists of several steps including the interactive generation of a distance field volume as core step. First, the surface particles have to be extracted from the simulation particle cloud though. The criterion whether a particle is a surface particle is its deviation from the centre of mass of the local neighborhood in combination with the overall number of particles in the local neighborhood. The optimal reuse of the simulation data makes this selection very fast. After the surface particles are extracted, a distance field volume is generated by rasterizing the surface point cloud into a volume with scalar values. . Furthermore, it overcomes limitations imposed by shading languages allowing it to be very flexible and approaching the practical limits of modern graphics hardware.

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Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Deepa S.Kadam, Ram B.Joshi Smoothed Particle Hydrodynamics Simulation International Journal of Scientific Research, Vol : 4, Issue : 12 December 2015

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