Julia Yeomans OBE FRS: Publications

Stirring by swimmers in confined microenvironments

(2014)

Authors:

Dmitri O Pushkin, Julia M Yeomans

Vorticity, Defects and Correlations in Active Turbulence

(2014)

Authors:

Sumesh P Thampi, Ramin Golestanian, Julia M Yeomans

Instabilities and topological defects in active nematics

EPL 105:1 (2014) ARTN 18001

Authors:

Sumesh P Thampi, Ramin Golestanian, Julia M Yeomans

Instabilities and Topological Defects in Active Nematics

(2013)

Authors:

Sumesh P Thampi, Ramin Golestanian, Julia M Yeomans

Viscous fingering at ultralow interfacial tension

Soft Matter 9:44 (2013) 10599-10605

Authors:

SA Setu, I Zacharoudiou, GJ Davies, D Bartolo, S Moulinet, AA Louis, JM Yeomans, DGAL Aarts

Abstract:

We experimentally study the viscous fingering instability in a fluid-fluid phase separated colloid-polymer mixture by means of laser scanning confocal microscopy and microfluidics. We focus on three aspects of the instability. (i) The interface between the two demixed phases has an ultralow surface tension, such that we can address the role of thermal interface fluctuations. (ii) We image the interface in three dimensions allowing us to study the interplay between interface curvature and flow. (iii) The displacing fluid wets all walls completely, in contrast to traditional viscous fingering experiments, in which the displaced fluid wets the walls. We also perform lattice Boltzmann simulations, which help to interpret the experimental observations. © 2013 The Royal Society of Chemistry.

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