A particle-based dissolution model using chemical collision energy.

Jiang, M., Southern, R. and Zhang, J. J., 2015. A particle-based dissolution model using chemical collision energy. In: GRAPP 2015 - 10th International Conference on Computer Graphics Theory and Applications; VISIGRAPP, Proceedings, 11-14 March 2015, Berlin, Germany, 285 - 293 .

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Abstract

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 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.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Activation energy ; Collision theory ; Dissolution ; Erosion ; Particle excitation ; Solute ; Solvent ; SPH
Subjects:UNSPECIFIED
Group:Faculty of Science and Technology
ID Code:22721
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:21 Oct 2015 09:49
Last Modified:21 Oct 2015 09:49

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