Abstract
The most prevalent approach to simulating viscous fluids is based on the Navier-Stokes equations, and has extensively been adopted in computer graphics for the past two decades. When employing an explicit viscosity integration, however, time step size for numerically stable simulation is likely to be limited and necessitate an exceedingly long period of time for computation. In this paper, we present a novel particle-based method for efficiently simulating viscous fluids using position-based constraints. Our method utilizes the geometric configuration of particles for the positional constraints in the position-based dynamics, and thus can generate visually-plausible behavior of viscous fluids, while allowing for the use of much larger time steps than the ones previously adopted in the viscous fluid simulations. An associated boundary handling scheme for the position-based fluids is also proposed to properly address constraints for density and viscosity distributions on boundaries. In addition, by adjusting parameters of particles, our method can produce complicated dynamics of threads, sheets, and volumes of different viscosity values in a unified framework. Several examples demonstrate the efficiency as well as robustness and versatility of our approach.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - 13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013 |
| Publisher | IEEE Computer Society |
| Pages | 260-267 |
| Number of pages | 8 |
| DOIs | |
| Publication status | Published - 2013 |
| Event | 13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013 - Hong Kong, China Duration: 2013 Nov 16 → 2013 Nov 18 |
Other
| Other | 13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013 |
|---|---|
| Country | China |
| City | Hong Kong |
| Period | 13/11/16 → 13/11/18 |
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Keywords
- Fluid simulation
- geometric constraints
- position-based dynamics
- viscous fluids
ASJC Scopus subject areas
- Computer Graphics and Computer-Aided Design
- Computer Vision and Pattern Recognition
Cite this
Accelerated viscous fluid simulation using position-based constraints. / Takahashi, Tetsuya; Fujishiro, Issei.
Proceedings - 13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013. IEEE Computer Society, 2013. p. 260-267 6815004.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Accelerated viscous fluid simulation using position-based constraints
AU - Takahashi, Tetsuya
AU - Fujishiro, Issei
PY - 2013
Y1 - 2013
N2 - The most prevalent approach to simulating viscous fluids is based on the Navier-Stokes equations, and has extensively been adopted in computer graphics for the past two decades. When employing an explicit viscosity integration, however, time step size for numerically stable simulation is likely to be limited and necessitate an exceedingly long period of time for computation. In this paper, we present a novel particle-based method for efficiently simulating viscous fluids using position-based constraints. Our method utilizes the geometric configuration of particles for the positional constraints in the position-based dynamics, and thus can generate visually-plausible behavior of viscous fluids, while allowing for the use of much larger time steps than the ones previously adopted in the viscous fluid simulations. An associated boundary handling scheme for the position-based fluids is also proposed to properly address constraints for density and viscosity distributions on boundaries. In addition, by adjusting parameters of particles, our method can produce complicated dynamics of threads, sheets, and volumes of different viscosity values in a unified framework. Several examples demonstrate the efficiency as well as robustness and versatility of our approach.
AB - The most prevalent approach to simulating viscous fluids is based on the Navier-Stokes equations, and has extensively been adopted in computer graphics for the past two decades. When employing an explicit viscosity integration, however, time step size for numerically stable simulation is likely to be limited and necessitate an exceedingly long period of time for computation. In this paper, we present a novel particle-based method for efficiently simulating viscous fluids using position-based constraints. Our method utilizes the geometric configuration of particles for the positional constraints in the position-based dynamics, and thus can generate visually-plausible behavior of viscous fluids, while allowing for the use of much larger time steps than the ones previously adopted in the viscous fluid simulations. An associated boundary handling scheme for the position-based fluids is also proposed to properly address constraints for density and viscosity distributions on boundaries. In addition, by adjusting parameters of particles, our method can produce complicated dynamics of threads, sheets, and volumes of different viscosity values in a unified framework. Several examples demonstrate the efficiency as well as robustness and versatility of our approach.
KW - Fluid simulation
KW - geometric constraints
KW - position-based dynamics
KW - viscous fluids
UR - http://www.scopus.com/inward/record.url?scp=84901386972&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84901386972&partnerID=8YFLogxK
U2 - 10.1109/CADGraphics.2013.41
DO - 10.1109/CADGraphics.2013.41
M3 - Conference contribution
AN - SCOPUS:84901386972
SP - 260
EP - 267
BT - Proceedings - 13th International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2013
PB - IEEE Computer Society
ER -