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A VOF-based method for the simulation of fluid-liquid-interfaces influenced by surfactants

Alke, A. and Bothe, D.
Kraume, M. (ed.) (2005):
A VOF-based method for the simulation of fluid-liquid-interfaces influenced by surfactants.
In: 3rd International Berlin Workshop – IBW3 on Transport Phenomena With Moving Boundaries, TU Berlin, [Conference or Workshop Item]

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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