年間 4 号発行
ISSN 印刷: 2169-2785
ISSN オンライン: 2167-857X
Indexed in
STABILITY OF ELECTROLYTE FILMS ON STRUCTURED SURFACES
要約
We investigate the stability of a thin film of liquid electrolyte on an electrically charged structured surface with a periodic array of gas-filled grooves. We derive a nonlinear evolution equation for the film thickness by taking into account the effects of structuring into our system of lubrication-type equations. We analyze how the introduction of structuring destabilizes the film by increasing either the Navier slip length or the length of the groove at the no-shear segments. We perform nonlinear simulations for the evolution of the film thickness to show that structuring decreases the rupture time with respect to a thin film on a solid surface.
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Dávalos-Orozco L. A., Thermal Marangoni instability of a thin film flowing down a thick wall deformed in the backside, Physics of Fluids, 28, 5, 2016. Crossref
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Ajaev Vladimir S., Gatapova Elizaveta Ya., Kabov Oleg A., Stability and break-up of thin liquid films on patterned and structured surfaces, Advances in Colloid and Interface Science, 228, 2016. Crossref