A Particle-based Dissolution Model using Chemical Collision Energy

Min Jiang, Richard Southern, Jian-Jun Zhang
2015 Proceedings of the 10th International Conference on Computer Graphics Theory and Applications  
We propose a new energy-based method for real-time dissolution simulation. A unified particle representation is used for both fluid solvent and solid solute. We derive a novel dissolution model from the collision theory in chemical reactions: physical laws govern the local excitation of solid particles based on the relative motion of the fluid and solid. When the local excitation energy exceeds a user specified threshold (activation energy), the particle will be dislodged from the solid. Unlike
more » ... previous methods, our model ensures that the dissolution result is independent of solute sampling resolution. We also establish a mathematical relationship between the activation energy, the inter-facial surface area, and the total dissolution time -allowing for accurate artistic control over the global dissolution rate while maintaining the physical plausibility of the simulation. We demonstrate applications of our method using a number of practical examples, including antacid pills dissolving in water and hydraulic erosion of non-homogeneous terrains. Our method is straightforward to incorporate with existing particle-based fluid simulations.
doi:10.5220/0005290302850293 dblp:conf/grapp/JiangSZ15 fatcat:5nkgrm7je5e37ir5sodlx77geu