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Pierre-Thomas Paul Brun

Related publications (16)

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Drops on the Underside of a Slightly Inclined Wet Substrate Move Too Fast to Grow

François Gallaire, Pier Giuseppe Ledda, Pierre-Thomas Paul Brun

Pendant drops suspended on the underside of a wet substrate are known to accumulate fluid from the surrounding thin liquid film, a process that often results in dripping. The growth of such drops is hastened by their ability to translate over an otherwise ...

AMER PHYSICAL SOC2021

In recent years the research community has paid significant attention to geometrically engineered materials. These materials derive their unique properties from their structure rather than their chemistry alone. Despite their success in the laboratory, the ...

ROYAL SOC CHEMISTRY2020

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Harnessing fluidic instabilities to produce structures with robust and regular properties has recently emerged as a new fabrication paradigm. This approach is exemplified in the work of Gumennik et al. [Nat. Commun. 4, 2216 (2103)], in which the authors fa ...

AMER PHYSICAL SOC2019

Designing soft materials with interfacial instabilities in liquid films

Pedro Miguel Nunes Pereira de Almeida Reis, Pierre-Thomas Paul Brun

Natural soft materials harness hierarchy and structures at all scales to build function. Adapting this paradigm to our technological needs, from mechanical, phononic and photonic metamaterials to functional surfaces prompts the development of new fabricati ...

2018

Three-dimensional Rayleigh–Taylor instability under a unidirectional curved substrate

François Gallaire, Gioele Mariano Nicolò Balestra, Nicolas Igor Jacques Kofman, Pierre-Thomas Paul Brun

We investigate the Rayleigh–Taylor instability of a thin liquid film coated on the inside of a cylinder whose axis is orthogonal to gravity. We are interested in the effects of geometry on the instability, and contrast our results with the classical case o ...

2017

In this review article, we exemplify the use of stability analysis tools to rationalize pattern formation in complex media. Specifically, we focus on fluid flows, and show how the destabilization of their interface sets the blueprint of the patterns they e ...

Royal Society, The2017

Reversible patterning of spherical shells through constrained buckling

Pedro Miguel Nunes Pereira de Almeida Reis, Pierre-Thomas Paul Brun

Recent advances in active soft structures envision the large deformations resulting from mechanical instabilities as routes for functional shape morphing. Numerous such examples exist for filamentary and plate systems. However, examples with double-curved ...

2017

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Interfacial forces exceed gravitational forces on a scale small relative to the capillary length-two millimeters in the case of an air-water interface-and therefore dominate the physics of sub-millimetric systems. They are of paramount importance for vario ...

Amer Inst Physics2016

Fabrication of slender elastic shells by the coating of curved surfaces

François Gallaire, Pedro Miguel Nunes Pereira de Almeida Reis, Gioele Mariano Nicolò Balestra, Pierre-Thomas Paul Brun

Various manufacturing techniques exist to produce double-curvature shells, including injection, rotational and blow molding, as well as dip coating. However, these industrial processes are typically geared for mass production and are not directly applicabl ...

Nature Publishing Group2016

Rayleigh-Taylor instability under curved substrates: An optimal transient growth analysis

François Gallaire, Gioele Mariano Nicolò Balestra, Pierre-Thomas Paul Brun

We investigate the stability of thin viscous films coated on the inside of a horizontal cylindrical substrate. In such a case, gravity acts both as a stabilizing force through the progressive drainage of the film and as a destabilizing force prone to form ...

Amer Physical Soc2016