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Nanobubble-induced flow of immersed glassy polymer films
| Title: | Nanobubble-induced flow of immersed glassy polymer films |
| Authors: | Pedersen, Christian Browse this author | | Ren, Shuai Browse this author | | Wang, Yuliang Browse this author | | Carlson, Andreas Browse this author | | Salez, Thomas Browse this author |
| Issue Date: | 6-Jan-2022 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review Fluids |
| Volume: | 6 |
| Issue: | 11 |
| Start Page: | 114006 |
| Publisher DOI: | 10.1103/PhysRevFluids.6.114006 |
| Abstract: | We study the free-surface deformation dynamics of an immersed glassy thin polymer film supported on a substrate, induced by an air nanobubble at the free surface. We combine analytical and numerical treatments of the glassy thin film equation, resulting from the lubrication approximation applied to the surface mobile layer of the glassy film, under the driving of an axisymmetric step function in the pressure term accounting for the nanobubble's Laplace pressure. Using the method of Green's functions, we derive a general solution for the film profile. We show that the lateral extent of the surface perturbation follows an asymptotic viscocapillary power-law behavior in time, and that the film's central height decays logarithmically in time in this regime. This process eventually leads to film rupture and dewetting at finite time, for which we provide an analytical prediction exhibiting explicitly the dependencies in surface mobility, film thickness, and bubble size, among others. Finally, using finite-element numerical integration, we discuss how nonlinear effects induced by the curvature and film profile can affect the evolution. |
| Rights: | Copyright 2021 by The American Physical Society. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/83761 |
| Appears in Collections: | 生命科学院・先端生命科学研究院 (Graduate School of Life Science / Faculty of Advanced Life Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: SALEZ THOMAS BLAISE
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