"Bottleneck effect" in two-Dimensional microfluidics

Abstract

An anomalously long transient is needed to achieve a steady pressurization of a fluid when forced to flow through micronarrowed channels under constant mechanical driving. This phenomenon, known as the "bottleneck effect" is here revisited from a different perspective, by using confined displacements of interfacial fluids. Compared to standard microfluidics, such effect admits in this case a neat quantitative characterization, which reveals intrinsic material characteristics of flowing monolayers and permits to envisage strategies for their controlled micromanipulation.

Document Type

Article

Published version

Language

English

Subjects and keywords

Dinàmica de fluids; Pel·lícules fines; Superfícies (Física); Fluid dynamics; Surfaces and interfaces; Thin films and nanosystems

Publisher

American Physical Society

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