Physically-Based Dynamics Simulation of Rigid Body and Fluid for Computer Animation in Virtual Reality
Date Issued
2006
Date
2006
Author(s)
Lee, Chia-Da
DOI
en-US
Abstract
This thesis focuses on the construction of the physically-based dynamic simulation of rigid bodies and fluids. We introduce the impulse-based scheme to accomplish collision, contact, and articulation of body-body interactions, as well as the two-way coupling of solid-fluid (rigid body and fluid) interactions. We propose a physically-based aerodynamic effect including Magnus effect and lift-and-drag effect for the rigid body simulation. The computations of aerodynamic forces are dependant on the shapes and the states of rigid bodies. The particle-based fluid simulation using SPH (Smoothed Particle Hydrodynamics) is introduced in this thesis. We propose a two-way coupling method from the collisions between fluid particles and rigid bodies to accomplish the floating and sinking of bodies. We propose a simulation loop to integrate the impulse-based rigid body solver and particle-based fluid solver successfully. With the simulation system, we can generate many realistic dynamics of rigid bodies and fluid. Besides application in computer animations, commercial films, and computer games, such a system can also be integrated with the 6-dof motion platform to generate realistic motion cues for the platform. Therefore, the VR-based motion/pilot simulator is able to provide various motion scenarios.
Subjects
物理
建模
衝量
法則剛體模擬
關節
氣體動力
學
計算流
體力
平滑
粒
子流
子系統
雙向耦合
固流
互動
physically-based modeling (PBM)
impulse-based rigid body simulation
articulation
aerodynamics
computational fluid mechanics (CFD)
smoothed particle hydrodynamics (SPH)
particle system
two-way coupling
solid-fluid interaction
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-95-R93921014-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):e67e3bbf28bde258319f57b6320c40c5