AN EFFECTIVE METHOD TO SOLVE RIGID BODY INTERACTIONS IN PARTICLE BASED FLUID SIMULATIONS

摘要

PURPOSE: An effective method for processing rigid body interactions in particle based fluid simulations is provided to express interactions between fluid-rigid body and rigid- rigid body through one boundary force using CBF(Collision based Boundary Force). CONSTITUTION: In case of a fluid-rigid body, a normal rigid body particle is selected(S211). When a collision condition is satisfied after a collision direction is decided, a vertical impulse calculating unit calculates vertical direction collision boundary force(S231,S241). In consideration of a vertical direction scaling factor and a horizontal direction scaling factor, a final boundary force deciding unit calculates final collision boundary force(S263). The final collision boundary force is applied to particles(S265).