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Versatile surface tension and adhesion for SPH fluids by Nadir Akinci; Gizem Akinci; Matthias Teschner is a Computer Science article available to read on EtoBox.

What is Versatile surface tension and adhesion for SPH fluids about?

Realistic handling of fluid-air and fluid-solid interfaces in SPH is a challenging problem. The main reason is that some important physical phenomena such as surface tension and adhesion emerge as a result of inter-molecular forces in a microscopic scale. This is different from scalar fields such as fluid pressure, which can be plausibly evaluated on a macroscopic scale using particles. Although there exist techniques to address this problem for some specific simulation scenarios, there does not yet exist a general approach to reproduce the variety of effects that emerge in reality from fluid-air and fluid-solid interactions. In order to address this problem, we present a new surface tension force and a new adhesion force. Different from the existing work, our surface tension force can handle large surface tensions in a realistic way. This property lets our approach handle challenging real scenarios, such as water crown formation, various types of fluid-solid interactions, and even droplet simulations. Furthermore, it prevents particle clustering at the free surface where inter-particle pressure forces are incorrect. Our adhesion force allows plausible two-way attraction of fluids

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Author

Nadir Akinci; Gizem Akinci; Matthias Teschner

Publisher

ACM

Published

2013

Language

EN

Field

Computer Science (Physical Sciences)