Dynamic capillary phenomena using Incompressible SPH
| Autor: | Prapanch Nair, Thorsten Pöschel |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Splash
Materials science Capillary action Applied Mathematics General Chemical Engineering General Chemistry Mechanics 01 natural sciences Instability Industrial and Manufacturing Engineering 010305 fluids & plasmas Physics::Fluid Dynamics 010101 applied mathematics Surface tension 0103 physical sciences Fictitious force Compressibility SPHERES Wetting 0101 mathematics |
| Zdroj: | Chemical Engineering Science. 176:192-204 |
| ISSN: | 0009-2509 |
| DOI: | 10.1016/j.ces.2017.10.042 |
| Popis: | Grid based fluid simulation methods are not able to solve complex non-linear dynamics like the rupture of a dynamic liquid bridge between freely colliding solids–an exemplary scenario of capillary forces competing with inertial forces in engineering applications–using a monolithic formulation for the solid and liquid phases present. We introduce a new Incompressible Smoothed Particle Hydrodynamics method for simulating three dimensional fluid-solid interaction flows with capillary (wetting and surface tension) effects at free surfaces. This meshless approach presents significant advantages over grid based approaches in terms of being monolithic and in handling interaction with free solids. The method is validated for accuracy and stability in dynamic scenarios involving surface tension and wetting. We then present three dimensional simulations of crown forming instability following the splash of a liquid drop, and the rupture of a liquid bridge between two colliding solid spheres, to show the method’s advantages in the study of dynamic micromechanical phenomena involving capillary flows. |
| Databáze: | OpenAIRE |
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