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Phase-Field simulation of surfactant adsorption onto flat and droplet interfaces
KTH, School of Engineering Sciences (SCI), Mechanics.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Fas-Field simulering av ytaktiv adsorption på plant och droppformat gränssnitt (Swedish)
Abstract [en]

Surfactant adsorption plays a vital role in our daily life, it is also an integral part when it comes to the establishment of microfluidic devices, a developed Phase-field model based on free energy of two fluids with a surfactant is analyzed. The ill-posedness of the model and proposed alternatives for it are discussed. A suitable alternative is studied, using adaptive finite element methods, alongside with the original phase field model and confirmed for its ill-posedness. Concluding to the well-posedness of our alternative, a practical case of two droplets moving in shear flow is demonstrated using numerical simulation.

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Other Engineering and Technologies
URN: urn:nbn:se:kth:diva-74156OAI: diva2:489235
Available from: 2012-02-02 Created: 2012-02-02 Last updated: 2012-02-02Bibliographically approved

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