mobile off
ABOUT US  |  RESEARCH  |  PUBLICATION   |  COURSE  |  SEMINAR  |  LINKS
Research
Physically-Based Simulation
Fluid Interaction
Fire
Ice and Snow
Water
Smoke
Shell Deformation
User Behavior Analysis
Sentiment Analysis
Outlier Detection
Automatic Player Behavior Analysis
Adaptive Agent Navigation
Crowd Simulation
Graphics Applications
Neuroimage
Artificial Life
3D Geometry Processing
Real domain data visualization
Integral MLS Surface Model
SDF-based Geometry Synthesis
Point-based Geometry and Modeling
Texture Processing
Miscible Multi-phase Fluids

1. Abstract

By modeling mass transfer phenomena, we simulate solids and liquids dissolving or changing to other substances. We also deal with the very small-scale phenomena that occur when a fluid spreads out at the interface of another fluid. We model the pressure at the interfaces between fluids with Darcy’'s Law and represent the viscous fingering phenomenon in which a fluid interface spreads out with a fractal-like shape. We use hybrid grid-based simulation and smoothed particle hydrodynamics (SPH) to simulate intermolecular diffusion and attraction using particles at a computable scale. We have produced animations showing fluids mixing and objects dissolving.

2. Viscous Fingerling

When fluids mix, we can see them spread out irregularly as their mixing surface makes a fractal-like shape. Viscous fingering refers to the onset and evolution of these instabilities in the displacement of fluids. The unstable flow of a fluid in a porous medium, or by analogy in a Hele-Shaw cell, has been studied for 50 years. The results have applications in areas such as enhanced oil recovery and micro-fluidics.




3. Conclusions

We have described a technique for modeling the flow of miscible multi-phase fluids by improving the handling of interfacial properties and chemical reactions. In several experiments, we constructed naturalistic scenarios in which a solid body melts or liquids are mixed. These combinations of viscous fingering, chemical-based mass transfer, and molecular forces are relatively easy to model with techniques familiar to the computer graphics ommunity.

4.Related Publications

[1] "Hybrid Simulation of Miscible Mixing with Viscous Fingering," Seung-Ho Shin, Hyeong Ryeol Kam and Chang Hun Kim, Computer Graphics Forum, Volume 29, Number 2, pp. 675-683, May 2010.


ABOUT_US  |  RESEARCH  |  PUBLICATION  |  COURSE  |  SEMINAR  |  LINKS