dc.contributor.author |
Trejo-Soto, C. |
dc.contributor.author |
Costa-Miracle, E. |
dc.contributor.author |
Rodriguez-Villarreal, I. |
dc.contributor.author |
Cid, J. |
dc.contributor.author |
Alarcon, T. |
dc.contributor.author |
Hernandez-Machado, A. |
dc.date.accessioned |
2020-11-16T10:52:47Z |
dc.date.available |
2020-11-16T10:52:47Z |
dc.date.issued |
2016-01-01 |
dc.identifier.uri |
http://hdl.handle.net/2072/377783 |
dc.format.extent |
18 p. |
dc.language.iso |
eng |
dc.relation.ispartof |
PLoS One |
dc.rights |
L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.source |
RECERCAT (Dipòsit de la Recerca de Catalunya) |
dc.subject.other |
Matemàtiques |
dc.title |
Capillary filling at the microscale: Control of fluid front using geometry |
dc.type |
info:eu-repo/semantics/article |
dc.type |
info:eu-repo/semantics/publishedVersion |
dc.subject.udc |
51 - Matemàtiques |
dc.embargo.terms |
cap |
dc.identifier.doi |
doi.org/10.1371/journal.pone.0153559 |
dc.rights.accessLevel |
info:eu-repo/semantics/openAccess |
dc.description.abstract |
We propose an experimental and theoretical framework for the study of capillary filling at the micro-scale. Our methodology enables us to control the fluid flow regime so that we can characterise properties of Newtonian fluids such as their viscosity. In particular, we study a viscous, non-inertial, non-Washburn regime in which the position of the fluid front increases linearly with time for the whole duration of the experiment. The operating shear-rate range of our apparatus extends over nearly two orders of magnitude. Further, we analyse the advancement of a fluid front within a microcapillary in a system of two immiscible Newtonian liquids. We observe a non-Washburn regime in which the front can accelerate or decelerate depending on the viscosity contrast between the two liquids. We then propose a theoretical model which enables us to study and explain both non-Washburn regimes. Furthermore, our theoretical model allows us to put forward ways to control the emergence of these regimes by means of geometrical parameters of the experimental set-up. Our methodology allows us to design and calibrate a micro-viscosimetre which works at constant pressure. |