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http://dx.doi.org/10.7583/JKGS.2014.14.3.55

Particle Motion Interpolation Method for Mitigating the Occurrence of Unnatural Wave Breaking in Fluid Simulation  

Sung, Su-Kyung (Dept. of Computer Science and Information Engineering, Inha University)
Lee, Eun-Seok (Dept. of Computer Science and Information Engineering, Inha University)
Shin, Byeong-Seok (Dept. of Computer Science and Information Engineering, Inha University)
Publication Information
Journal of Korea Game Society / v.14, no.3, 2014 , pp. 55-62 More about this Journal
Abstract
In particle-based fluid simulation, applying sudden power to particle raise unnatural flow when wave is breaking. To solve this problem, we have used an linear interpolation technique that interpolate between fluid particle by subdividing the time interval in the previous work. Acceleration vector of the particle with increased pressure in boundary could change smoothly. However, particle looks like flow with viscosity because the number of the minimum samples to interpolate increases. We propose an weighted-interpolation technique to represent the realistic movement of fluid. it is accumulating that has added and assigned different weights to the previous acceleration vector and current one repeatedly. weighted-interpolation technique using less minium samples to flow than linear interpolation, so it can solve the problem which particle looks like flow with viscosity.
Keywords
fluid simulation; SPH; weighted-interpolation;
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