| Item Type: |
Conference or Workshop Item
|
| Erschienen: |
2005 |
| Editors: |
Kraume, M. |
| Creators: |
Alke, A. and Bothe, D. |
| Title: |
A VOF-based method for the simulation of fluid-liquid-interfaces influenced by surfactants |
| Language: |
English |
| Uncontrolled Keywords: |
Surfactants, Marangoni effect, Volume-of-Fluid-Method, Surfacetransport-
theorem, continuous interface-construction. |
| Divisions: |
04 Department of Mathematics > Mathematical Modelling and Analysis
UNSPECIFIED
Zentrale Einrichtungen
04 Department of Mathematics |
| Event Title: |
3rd International Berlin Workshop – IBW3 on Transport Phenomena With Moving Boundaries |
| Event Location: |
TU Berlin |
| Date Deposited: |
12 Apr 2011 12:55 |
| Alternative Abstract: |
| Alternative abstract | Language |
|---|
| The focus of this contribution is on numerical simulation of processes
with moving deformable interfaces involving soluble surfactants. Resolution of
the interface is done by the Volume-of-Fluid-method. The current numerical
approach is limited to diffusion controlled processes, where the relation between
the area-specific surfactant concentration on the interface and the volume-specific
concentration in the sub-layer adjacent to the interface is given by an adsorption
isotherm. The change in time of the amount of surfactants within a fixed control
volume containing interface is determined by diffusive and convective fluxes both
on the interface and in the bulk phase and by advection of the interface itself. For
a conservative discretisation of the interfacial fluxes, a reconstruction of the
interface by means of a continuous iso-surface with respect to the VOF-variable is
used. | English |
|
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