상세정보
학술지
Impulse-Based Rigid Body Interaction in SPH
- 발행일
- 200906
- 출처
- Computer Animation and Virtual Worlds, v.20 no.2-3, pp.215-224
- ISSN
- 1546-4261
- 출판사
- John Wiley & Sons
- 초록
- A new boundary force is proposed to solve rigid body interaction in SPH (Smoothed Particle Hydrodynamics). The new boundary force is impulse-based rather than potential-based. The impulse is converted to a boundary force with a fundamental observation that the impulse is a momentum change which is a result of a force acting on an object during a time interval. Our new impulse-based boundary force gives more stable and accurate results in all kinds of rigid body interactions, especially in rigid-rigid interaction since our boundary force faithfully reflects the dynamic features of rigid body. With our impulse-based boundary force, SPH fluid solver is capable of full two way interaction of fluid and rigid body and it turns to be a particle-based rigid body solver if only rigid bodies are simulated without fluid. © 2009 John Wiley & Sons, Ltd.
- KSP 제안 키워드
- Body Interaction, Boundary force, Dynamic features, Rigid bodies, Stable and accurate, Time interval, smoothed particle hydrodynamics