Drops on polymer brushes -- advances in thin-film modelling of adaptive substrates

Fuente: arXiv
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Hauptverfasser: Hartmann, Simon, Diekmann, Jan, Greve, Daniel, Thiele, Uwe
Format: Preprint
Veröffentlicht: 2023
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author Hartmann, Simon
Diekmann, Jan
Greve, Daniel
Thiele, Uwe
author_facet Hartmann, Simon
Diekmann, Jan
Greve, Daniel
Thiele, Uwe
contents We briefly review recent advances in the hydrodynamic modeling of the dynamics of droplets on adaptive substrates, in particular, solids that are covered by polymer brushes. Thereby, the focus are long-wave and full-curvature variants of mesoscopic hydrodynamic models in gradient dynamics form. After introducing the approach for films/drops of nonvolatile simple liquids on rigid smooth solid substrate, it is first expanded to an arbitrary number of coupled degrees of freedom, before considering the specific case of drops of volatile liquids on brush-covered solids. After presenting the model its usage is illustrated by briefly considering the natural and forced spreading of drops of nonvolatile liquids on a horizontal brush-covered substrate as well as drops sliding down a brush-covered incline. Finally, also volatile liquids are considered.
format Preprint
id arxiv_https___arxiv_org_abs_2311_07307
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Drops on polymer brushes -- advances in thin-film modelling of adaptive substrates
Hartmann, Simon
Diekmann, Jan
Greve, Daniel
Thiele, Uwe
Fluid Dynamics
Soft Condensed Matter
We briefly review recent advances in the hydrodynamic modeling of the dynamics of droplets on adaptive substrates, in particular, solids that are covered by polymer brushes. Thereby, the focus are long-wave and full-curvature variants of mesoscopic hydrodynamic models in gradient dynamics form. After introducing the approach for films/drops of nonvolatile simple liquids on rigid smooth solid substrate, it is first expanded to an arbitrary number of coupled degrees of freedom, before considering the specific case of drops of volatile liquids on brush-covered solids. After presenting the model its usage is illustrated by briefly considering the natural and forced spreading of drops of nonvolatile liquids on a horizontal brush-covered substrate as well as drops sliding down a brush-covered incline. Finally, also volatile liquids are considered.
title Drops on polymer brushes -- advances in thin-film modelling of adaptive substrates
topic Fluid Dynamics
Soft Condensed Matter
url https://arxiv.org/abs/2311.07307